Heung-min Son scored a hat-trick at White Hart Lane as Mauricio Pochettino's side booked their place at Wembley at the expense of their London rivals, despite losing the services of Harry Kane early on.
If they can win today's FA Cup quarter final match against League One side Millwall at White Hart Lane, it will be a step in the right direction for them.
Kane appeared to turn his ankle badly when falling awkwardly while tussling for the ball with Millwall defender Jake Cooper.
"Now it's a matter of waiting, assessing tomorrow, and after tomorrow, and seeing what happens". It's sure it will be hard for him to play against Southampton on Sunday but we need to wait now and see what happens.
Vincent Janssen netted his first goal from open play as Tottenham hammered Millwall 6-0 to reach the FA Cup semi-finals.
Indeed, Kane has also scored 19 times in 21 games in the Premier League to help Spurs put some pressure on Premier League leaders.
Alli, who scored Tottenham's fourth goal in the rout, told BBC Sport: "It is always awful to lose a player like Harry but when he went off everyone stepped up a gear". We can not cry. We have enough players to replace him and win games.
Although Spurs are into the last four of the FA Cup for the first time in five years, the bigger target is securing UEFA Champions League qualification.
But Harris said: "What I will say is me personally - and the club - we won't condone that. Millwall just couldn't live with the pace", Kilbane said on BBC Radio 5 live.
Leicester complained to the FA about "abuse, provocation and intimidation" of their players fans and staff in their fifth round defeat to Millwall. "We want people to be dealt with harshly, of course". The focus comes away from what we've achieved in the competition. "It's wrong in football and wrong in society". "I'm sad about the Harry injury, but now it's about trying to find a solution and seeing who is the best player to replace him".
"If complaints are made they will have to be looked at to see if they have any validity to see if it stirs up racial hatred", Ouseley told The Associated Press.
The Danish star said: "We know we have players on the bench who can play as well as the guys in the starting eleven".