Brennan Johnson has settled one debate about that night in Bilbao once and for all and has admitted he wants to improve one area in his game in particular.
The 24-year-old was Tottenham's top scorer last season with 18 goals, including five in the Europa League and the most famous of them all came in the final at the Estadio de San Mamés in May.
Ask any Spurs fan and they can play it over and over in their mind whenever they close their eyes. Richarlison picks out Rodrigo Bentancur's run down the left-hand side of the Manchester United penalty area and the Uruguayan plays it back to Pape Matar Sarr.
The Senegal international takes one touch and swings the ball into the six-yard where Johnson has made a great run. The ball hits him and bounces against Luke Shaw's arm and back towards the net. The Spurs man reacts quicker than anyone else and the ball spins inside the post and over the line.
Only did the Wales international actually get the last touch? 99 of the seemingly 100 angles shown of the goal make it look like he didn't quite get to it, but there is one angle that appears to show the ball spin in a different direction as if one of the studs on Johnson's boot brushes it.
When interviewed on the pitch after the game by the club, Johnson was vague or modest when speaking about that winning goal, saying simply that it didn't matter how it went in or who scored it.
Tottenham fans will sing 'Johnson again' regardless and in doing so will think of that night and that moment, but football.london just needed to know for our own peace of mind.
So Brennan, did you actually touch the ball before it crept inside Andre Onana's left-hand post? Be honest now.
"Yeah!" he said with certainty and a laugh. So that's it settled. Case closed. It was indeed Johnson again, ole ole ole.
Even the player has to pinch himself sometimes when he thinks about that night in northern Spain when Spurs ended 17 years of hurt.
"Still if I see a video back or pictures of it, it doesn’t feel real because it was such a surreal moment at the time. It’s definitely weird to look back at it but it’s an amazing memory," said Johnson.
Then came the parade through the streets of N17 two days later with Johnson the star attraction, enjoying himself on his birthday a lot, let's say.
One particularly hilarious moment came as the team were heading off after lifting the trophy on stage in front of the Tottenham Hotspur Stadium. Johnson grabbed the cup and kept coming back out, whipping up the crowd and swerving away from the poor security guard tasked with bringing the matchwinner back inside and ensuring the trophy wasn't damaged in the process.
Imagine your mate after a night out being particularly merry outside the local kebab shop grabbing a traffic cone and running around with it, only this was a Premier League footballer having the time of his life in front of 220,000 people and holding a priceless European trophy.
Johnson's slapstick routine went on for a good five minutes, the crowd loving it and Spurs staff looking more and more terrified the longer it went on. In the end two security guys had to haul him away as he waved back at the crowd, milking the roars of appreciation.
So what does he actually remember from a birthday that he understandably celebrated like no other? Again comes that laugh.
"I remember a lot. For me it opened my eyes to how big the club is," he said. "Obviously we know about Tottenham and you experience it from the stadium, how it is sold out every week.
"When you do these parades and you keep going further away, but no one is going anywhere. You get more and more people. It really opens your eyes to how big the fanbase is. Just enjoying it with the team, everyone being there. The energy was so high. It was a really special day. It was my birthday as well."
Johnson is in a bubbly mood and understandably so because he's in a good place now. His strength of character dragged his Tottenham season out of the depths of social media abuse that became so horrendous he limited comments and then eventually took down his Instagram account for a while.
He didn't let it beat him though. It became his fuel and propelled him on a long run of goals in consecutive games for club and country. He would end the season as the club's top scorer and cap it all off with that goal in Bilbao when he wrote his name in the history books.
"That season was like a rollercoaster to be honest. So many different emotions. It taught me so much about football," explained Johnson. "Not just on the pitch but off it. How you spend your spare time and who you spend it with. How you get on with your team, speaking to people. It takes a while to find a balance.
"I wouldn’t have last season any different than it was. I learnt a lot. I improved a lot. Won as a team, lost a lot of games as well. In terms of things that you get in football, I don’t think this season will be like last season. Ups and down, how much I learned. Really important season for my development."
He added: "Now I’m much more relaxed about how I see things. I know what I want to do and how I want to be as an individual. In terms of dealing with other things outside of football, I know who I like to spend my time with and the people around me. I just work hard and if it happens, it happens."
The Ange Postecoglou system suited Johnson like a glove and he kept profiting over and over again from his runs to the back post or the six-yard box that the Australian got his coaches to drill into him.
Now though Johnson has a new head coach in Thomas Frank so it's time to prove himself once again.
"It was a different tactic from most teams but it definitely suited me. He was the manager who brought me in and he was very much key to me scoring a lot of goals," said Johnson. "Now it’s different. It’s a new look at how we are going to play and it’s one I’m also very excited about.
"I can also be very important to the team. Of course I have good memories of the last two seasons but I'm really excited to get going now and for the season to start."
What will also help the attacker is that Frank tried to sign him from Nottingham Forest in the summer he ended up at Tottenham, so the Dane clearly rates him and knows exactly how he wants to use him.
"It’s nice to finally work with him. He was always someone who impressed me even though I never played under him," said the Wales international. "Even though we played for different teams, I think a lot of people could respect how Brentford played and how hard they were to beat. The quality they had in attacking areas.
"They had great players. A lot of that was down to him because when he took over they were a lot worse off. He took them to become an established Premier League team. It shows what kind of development he can do and we are all very excited."
One aspect of Johnson's game that has come in for criticism is the struggle he can have with beating his man down the wing. He has pace to burn and great technique but often will not open his legs and really fly at the defender.
When asked what he wants to improve, he admits that it is a side of the game he must improve on.
"I’m all about my final product. There are a lot of things I want to do. On the ball I want to be better in 1v1 dribbling situations, that is something I look back at least season and I was always trying to improve on and I think I did towards the end of the last season," he said.
"Directness. More of a forward-thinking mentality from me and of course scoring goals. I scored a lot off one touch. I’m trying to improve my left foot, (shooting) off the dribble. I always look back at how I did last season and there are a lot of positives to take forward. Now it’s about trying to get an overall better game and I’m working on it."
On Sunday in Seoul on the pre-season tour, Johnson showed his value in the Frank era with a confident low strike from the edge of the Newcastle box. As well as working with the new head coach, one of the Dane's highly-rated coaches has returned to Spurs.
Justin Cochrane was an academy coach at Tottenham for years before leaving for a job in the England youth system. He would later work in Manchester United's academy and then make the move into senior football by linking up with Frank at Brentford.
The 43-year-old is now also part of Thomas Tuchel's England set-up and when the chance came to come back to Spurs, he leapt at it.
Cochrane works with the attacking players and Johnson is relishing his training sessions and lessons.
"It’s been really good. Justin is a great coach. His drills that he does are super realistic to games. He is really good at working on finishes that people do. It feels like it is almost instinct," he explained.
"He practices getting the contact right. A lot of finishing, dribbling, movement which I think is really important. We have such good attacking options and it’s nice to learn off the people you are with and see how they like to score and taking bits from everyone. Justin has been really good so far."
Among those attacking options, Johnson has new competition this season in the shape of Mohammed Kudus, who made the £55million move from West Ham.
The Ghana international is a very different player to the Wales international. Kudus is all about beating his man in one-vs-ones but needs to improve his end product. If Frank and Cochrane can help both players improve their different weaknesses then they could become a lethal dual threat, either used in combination or as a one-two punch.
"Great player. I’ve been really impressed with him since he came in," said Johnson. "Really nice guy as well. Last season there were quite a few games where I don’t think we even had 11 first-team players.
"Getting as much quality as we can is important and it is what we need because we are in the Champions League and want to go far in all competitions. It wasn’t just a one-off thing. We want to be in the Champions League every year. We need the quality and depth in the squad. We are getting there. Hopefully we can stay fit this season and it gives us the best chance to compete in all competitions."
Kudus was meant to be part of a double signing last month along with Nottingham Forest's Morgan Gibbs-White only for that £60million transfer to collapse with the England midfielder signing a new contract at the Midlands club despite wanting to leave for Spurs.
So did Johnson speak to his former team-mate and friend throughout the transfer saga that lasted a couple of weeks?
"I haven’t because I knew his phone would be all over the place. I didn’t want to put more pressure on to him or anything," he said. "Morgan is a great guy. We got on really well and I wish him all the best."
There is about to be one big transfer out of Tottenham and that is the club captain Son Heung-min, who will join Major League Soccer outfit LAFC after 10 years in north London.
Johnson is a good friend of the skipper and when he scored that goal against Newcastle in Seoul, knowing it was Son's final game, he used the South Korean's trademark goal celebration.
It's not the first time Johnson has used something of the 33-year-old's. In the final game of last season against Brighton, he was spotted wearing a pair of Son's boots which bore the Spurs legend's name on the side, only he had scribbled 'John' above the 'Son' to make them his own. The Wales international explained how that all came about.
"I remember when he first showed me the picture that he was getting his own shoe and this was last year, a long time before they came out and I said to him ‘can I have some? He said that he would sort me out," he remembered.
"Then they came out in April or May. I went into training one day and the boots were there. Me and him. I love Sonny. He is a great guy, great personality. I really liked the shoes. They were cool, he is my friend. So I just wore them.
"I knew that he created them. It was his design. It was white red and blue. It matched the kit really well. I said I would wear them one time and then I did in the last game."
On writing his name on them, he added: "It was his idea. I said about doing it and he said you should try it. I probably won't wear them again. If he gets a new boot in the future I will."
Now Son is on his way to the USA, his legacy is there for all to see at Tottenham, having won a Premier League Golden Boot, a Puskas Award and led the team to that Europa League trophy as captain. For Johnson, he represented the opportunity to not only make a new friend but also learn so much.
"I learned loads of things. How he is as a person. How professional he is. Also so much on the pitch. He is a great player so it is impossible to learn everything he does. He does it at such a high level," he said.
"His career speaks for itself. How amazing a player he is. Just little things that I can do. He speaks to me a lot. He likes to tell me bits of advice on how I can become better and little things to help me.
"I’m a right-footed player who played on the right a lot last season. You know he is both-footed. He helped me with little techniques on how to improve my left foot and be better at that.
"He is an amazing character and personality. A world-class player. I don’t think there would be anybody who would say that they wouldn’t want to play with him because of how much of an amazing player and personality he is."