It was a special day too for their manager Hein Vanhaezebrouck, who was celebrating his 53rd birthday on Thursday.
“We believed in our own qualities,” Vanhaezebrouck said. “We were not afraid to play, and that is a victory in itself for me. I told them to believe it was possible to win. To do that was the cherry on the cake for me.”
Tottenham will still be favourites to turn the tie around in front of their own fans at Wembley but the national stadium has not proven a happy hunting ground for them this season.
They lost two of their three games there in the Champions League group stage, a record that proved key to them failing to go through.
“Going to Wembley is mythical,” Vanhaezebrouck added. “The most important thing for us was to make it a game, to avoid losing 4-0. That can happen for the best.
“Now we can really make a game of it. We made the return game a very interesting game next week.”