'I must say they get a lot of money before they have played games, that doesn't improve their hunger.
Son, who scored twice in two meetings with the Bundesliga leaders last season, volleyed home two minutes after the restart to shift the momentum in the hosts' favour, before Vertonghen and Llorente potentially put the tie beyond Lucien Favre's visitors.
Dortmund boss Lucien Favre bemoaned his team's collapse, saying: "The start of the second half we gave it away". I think we took some rash decisions.
Having been let off the hook after a potentially game-changing error by Foyth, Spurs did not pick up from there and continued their wobbly form for nearly the entirety of the first half. "It was like we weren't comfortable, we didn't feel what we planned to play", said the Argentinian.
"But after we fixed some problems, showing them some clips at half-time and talking a little about different positions - offensive and defensive - and trying to help the team to perform better". I am happy with the performance and the circumstances we have.
"The players deserve all the credit because they were fantastic".
"In fairness to people like, Dele, Christian, Sonny, they've been scoring a huge amount of goals at the top level in the Premier League for a good few seasons".More news: Texas deputies find 4 malnourished kids, 2 living in dog kennels
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"I can not tell you (my plans) but I am going to be out of England".
"It's not finished, we have to focus on the second game too".
"The game changed in the second half definitely".
They were on the other end of the spectrum minutes later as Juan Foyth, starting in place of Kieran Trippier, lost the ball in his own box - with only the keeper to beat for Christian Pulisic, who failed to convert and let Mauricio Pochettino's side of the hook. "And after that we tried but played a bit too hastily".
"And also it wasn't a situation where he left City and went straight into Dortmund's first team".
Favre added: "I haven't got any particular worries".
Sancho has turned into a star for Dortmund and England since making the jump to the Bundesliga in 2017 with his pace and willingness to run at and unsettle defenders, and Wenger claims that confidence was one of the things that caught his eye early on.