Christian Eriksen's double ensured Spurs avoided extra time at League One Sheffield United, his late goal giving the Londoners a 3-2 win on aggregate in the Capital One Cup, and the midfielder revealed how important the win was.
Spurs will meet Chelsea at Wembley on March 1 and Eriksen said: "When they scored they got confidence, and you saw the crowd, but we had to play our best. To be in the final is what everyone wants at Tottenham.''
Che Adams scored two goals in 140 seconds for United to put them 2-1 ahead on the night and level at 2-2 overall after Eriksen's opener. Extra-time looked likely at that stage but Eriksen made sure Spurs will be facing Chelsea in a month.
Meanwhile, Harry Kane said it "means the world'' for Tottenham to reach the final.
Kane told Sky Sports 1: "We were in cruise control and that was the worst thing we could have done. Credit to Sheffield United but it shows how much character we have.
"At Wembley anything can happen. It's 1-1 between us this season, it's a decider if you like and there's no better place for it than Wembley.''