"The first half was tough, it was an even game but after Sonny scored the team started to feel more free, more confident and started to play in a very good way".
"They deserve full credit, a lot of praise because the effort they are doing this season is awesome".
The South Korea worldwide found the net for the fourth successive game, helping Spurs take a commanding lead in their last-16 tie.
Substitute Fernando Llorente headed Spurs into dreamland three minutes later, and they will take their three-goal lead back to Germany for the second leg on March 5, a result that already looks beyond doubt unless Spurs stage a dramatic collapse.
As one of four Spurs centre-backs on the pitch, Vertonghen was the one who found himself switched out to left-back.
"It is my job to prepare the strategy. If it was a different result, people might say I'm the worst coach in the world", he said. We didn't feel what we planned to play.
This provided them with the base to score two more goals, inspite of what was a disastrous first-half showing. He's obviously got the confidence to go and do that.
"They get a lot of money before they have played games".
The Daily Express framed Pulisic and his "underwhelming performance against Tottenham" in the context of replacing star Eden Hazard (who is expected to join Real Madrid this summer) and noted that "fans on Twitter were not impressed at all by his performance at Wembley on Wednesday night".
Lucas Moura gave Tottenham an early spark when he latched onto Davinson Sanchez's header and smashed a volley just wide from the edge of the area.
Dortmund were without the services of talisman Marco Reus as Chelsea-bound Christian Pulisic was drafted into the attack.
That's what Sancho and Pulisic can do to a player.
Having had their own issues with injury and player unavailability in recent times, Tottenham Hotspur had been all but dismissed by the critics as no-hopers, both in terms of the title race as well as the Champions League.
Despite being pushed back for much of the first half, Tottenham had refused to surrender and their perseverance was rewarded in the 47th minute.