Tottenham have lost their first two Premier League matches and failed to score in both as rejuvenated duo Anthony Elanga and Yoane Wissa struck to earn Newcastle a 2-0 victory.
Spurs' big-spending summer, in which they have splashed £320m on eight new players, is yet to have an impact on Roberto De Zerbi's side, who were booed off a week on from being thrashed 3-0 at Brentford and lacked a cutting edge in their first home league game despite handing a debut to forward Omar Marmoush.
De Zerbi's other key signing, £75m winger Savio, has already been dealt an injury blow, missing out with "muscle fatigue", while midfielder Sandro Tonali, who left Newcastle in a £100m move, was mocked by his former supporters as they collected their first league win under Matthias Jaissle.
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Tottenham were the better side in the first half, with Newcastle goalkeeper Lucas Hornicek making saves from Mathys Tel and Jan Paul van Hecke, but Elanga, who struggled last season but shone last weekend with a goal against Liverpool, swivelled in the area and sent a shot off the post midway through the second half to put Newcastle ahead.
De Zerbi reacted with three substitutes, yet Spurs never looked likely to find an equaliser, and Wissa, another who disappointed under previous boss Eddie Howe, compounded their misery. Newcastle sub Nick Woltemade headed a corner into the six-yard box and Wissa, with his back to goal, hooked the ball over his head into the net.
The key moments from the Tottenham Hotspur Stadium
Full-time: SPURS BOOED OFF! Plenty of home fans have already left, but some of the ones that have stayed deliver their verdict at the whistle.
De Zerbi: We are not a team yet - forget the result
Spurs boss Roberto De Zerbi speaking to Sky Sports:
"For 60-65 minutes we played better than Newcastle. We had a chance to score but we didn't. After they scored, we lost distances.
"We had more chances and shot more on goal. We are not a team yet. We have to improve a few things.
"Forget the result, but I'm not angry. We are working well. We were unlucky today, especially with the result."
Redknapp: Spurs lacked leaders - they must do better
Jamie Redknapp on Saturday Night Football:
"There's a lot of new players at Spurs and it's going to take time. The manager has got a jigsaw puzzle and he's got to figure out how to fit the players in, what system to use, who the best three players are in midfield.
"There are going to be teething problems.
"I also look at the senior players and players like Van de Ven didn't do enough to lead today and certainly with the goals.
"Players who have been there for a long time can do better."
Jaissle proud of 'incredible' performance
Newcastle boss Matthias Jaissle speaking to Sky Sports:
"It was incredible and I'm really proud. We are really proud as a club, as a coaching staff to see a team on the pitch delivering the match plan at a high level already, but also seeing players fully committed to what we're doing.
"This is a good start and a moment to enjoy."
Elanga and Wissa thriving under new boss Jaissle
Sky Sports' David Richardson at the Tottenham Hotspur Stadium:
"In Elanga and Wissa, it's like two new players!" said Sky Sports' Jamie Carragher. The pair are showing their quality at last.
"Newcastle head coach Matthias Jaissle is doing what Eddie Howe couldn't with the duo that were signed for £110m last summer. He also handed midfielder Nico Gonzalez a debut and it was his pass that led to Elanga's opener.
"For all the talk of a season of struggle under their new boss after another difficult transfer window, their supporters left the Tottenham Hotspur Stadium singing about Europe.
"Their chants may have been tongue in cheek, but they will be buoyed by Jaissle's fresh approach, with a side playing with the freedom and togetherness to challenge for European places."`
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