Is Tudor's Spurs reign almost up?
Phil McNulty
BBC Sport chief football writer
If Igor Tudor's jaw-dropping removal of goalkeeper Antonin Kinsky was a brutal example of a mistake being rectified swiftly, then is it time for Tottenham's hierarchy to consider doing the same?
The interim head coach delivered a time-honoured blunt "no comment" when asked whether he deserved to keep his job after the 5-2 loss at Atletico Madrid, his fourth straight defeat.
This situation, like Spurs' season, seems out of his control even after only 26 days in charge.
His position is looking increasingly untenable, with every scrap of evidence produced since he succeeded Thomas Frank suggesting he is the wrong man in the wrong place.
Tudor's unique selling point in a chequered, nomadic coaching career was supposedly his ability to provide an instant spark of impact. At Spurs, this has been The Midas Touch in reverse - The Minus Touch.
Four defeats from four games is the worst start by anyone in charge at Spurs, with each one more damaging and demoralising than the last. He is not arresting the Spurs crisis, he is accelerating it.
Tudor has demonstrated he is not afraid to make the big calls. The snag is, he is getting them wrong when Spurs can ill-afford it. And, as yet, he has not fulfilled his part of the bargain.
His days may now be measured in very small numbers.
Tottenham 'admired' Tudor's short-term work
Sami Mokbel
BBC Sport Senior football correspondent
Spurs wanted an interim head coach until the end of the season - and that immediately narrowed the field down.
After reviewing their options, it is understood Spurs felt Igor Tudor fit the bill for a few key reasons.
He has experience working at some top European clubs and managing big-name players.
His reputation is about aggressive football with an attacking intent, an element which was particularly important to Spurs after criticism of their style of play under Thomas Frank.
The club also admired his work in improving teams on a short-term basis.
For example, his Lazio team were unbeaten in the league for the first two months after he joined. And he only lost one of his first nine games at Juventus, also going unbeaten in his first eight matches in his first full season at the club.
Poll: Should Tottenham sack Igor Tudor?
It seems an unlikely question about a manager who has only had four matches in charge, but Tottenham's form and results under Igor Tudor really have been that bad.
Things started off with a heavy defeat at home to north London rivals Arsenal and unravelled from there, with further losses in the Premier League at Fulham and at home to Crystal Palace before Tuesday's shambolic display at Atletico Madrid in the Champions League.
There have been numerous calls - which we will get to shortly - for the Spurs hierarchy to cut their losses and end Tudor's interim tenure, which was due to last until the end of the season.
So we are asking you the question in our poll at the top of this page - should Tottenham sack Igor Tudor?
Galatasaray stun Liverpool in Istanbul
Galatasaray 1-0 Liverpool
Liverpool
Arne Slot's 100th game in charge of Liverpool took an unexpected turn as Galatasaray established a narrow 1-0 lead in their last-16 tie.
Former Southampton, Fulham and Wolves midfielder Mario Lemia delivered the blow with a headed goal past Giorgi Mamardashvili just seven minutes into the first-leg fixture.
It was the 10th goal the Reds have conceded from corners this season.
Liverpool did think they had levelled things up in the 70th minute, though, after the ball was bundled over the line from Dominik Szoboszlai's corner.
But it wasn't to be as VAR, following a lengthy check, ruled the ball had hit Ibrahima Konate's arm in the build-up, once from the corner delivery and twice after the ball came off Virgil van Dijk's heel.
It leaves Slot's side with it all to do in the second leg at Anfield on 18 March.
'Staggered' by decision to substitute Kinsky
Atletico Madrid 5-2 Tottenham
John Murray
BBC football correspondent on BBC Radio 5 Live
Honestly, I don't know if I've ever seen anything quite like the first 23 minutes of what happened in the Metropolitano last night.
The feeling was it might not go well for Tottenham, but they'd be in touch for the second leg at home in London. The first 20 minutes or so they were completely blown away. It was mistake after slip after error after mistake. And Atletico Madrid just scored goals after goal after goal after goal, so that was one thing.
But to substitute the goalkeeper, 22-year-old Antonin Kinsky, which had been Igor Tudor's big call to play in the Champions League for Tottenham for the first time. And yes, he made two of the slips which led to two of the three goals scored at that time, but to substitute him off, I honestly can't remember seeing anything like that before.
He came running off the field. I saw two or three of his team-mates came over to him as he came off the field, and Tudor, his manager who made the call to play him, stood on the edge of the coaching area, and there was no interaction between the two at all.
We were staggered.
Why was Vicario dropped?
Atletico Madrid 5-2 Tottenham
Paul Robinson referred to concerns over the form of Tottenham's number one goalkeeper Guglielmo Vicario as the trigger for Igor Tudor to start Antonin Kinsky ahead of him at Atletico Madrid - a decision that he accepted backfired.
Vicario had started the majority of Tottenham's domestic and European games so far this season, but was dropped by Tudor on Tuesday night following recent poor performances.
The Italian shot-stopper had started all three games under the club's new interim head coach.
However, Vicario conceded nine goals in those opening three fixtures, with defeats to Arsenal, Fulham and Crystal Palace starting Tudor's reign.
It was for that reason the boss decided to switch things up in-between the sticks at the Estadio Metropolitano.
Speaking pre-match, Tudor was tight-lipped on his decision: âI chose today what I think is best for the team in this moment. This is the first XI for today. There is also the second game [in this tie], so there is space for everyone."
'Quite blatantly for self preservation'
Atletico Madrid 5-2 Tottenham
Paul Robinson
Former Tottenham goalkeeper on BBC Radio 5 Live
He's [Igor Tudor] making decisions that he maybe thinks is going to one, keep him in a job, or two, keep Tottenham in the Premier League and performances are going to turn around.
It was a very selfish decision [to substitute Antonin Kinsky in the 17th minute] as a manager.
Actually, when you rewind the clock, I think he brought Kinsky in tonight because [Guglielmo] Vicario has been poor. Vicario has made errors that have led to goals and he has cost Tottenham points in the league, of late. I think he brought Kinsky in tonight thinking that if he does well I have got an excuse to keep him in now until the end of the season.
He reverted on that decision very, very early on in the game. I have never seen that in my playing career, in my broadcasting career, I have never seen a manager substitute a goalkeeper so obviously because of the mistakes that he made.
It's quite blatantly for self preservation by the manager because it was a decision that he thought was best for him and his team at the time, without consideration for the young goalkeeper.