LONDON -- Harry Kane has said he will be happy at Tottenham Hotspur as long as they keep progressing, but added that it is pointless for clubs to keep players against their will.

Kane, who has been linked with Real Madrid, also denied being in talks over a new contract and said he did not know of any plans for negotiations.

Speaking after the England international had scored twice in the 3-0 FA Cup third-round win over League One AFC Wimbledon, manager Mauricio Pochettino said Spurs "cannot force" Kane to stay indefinitely.

He added that Philippe Coutinho's £142 million move from Liverpool to Barcelona showed how difficult it is for even the biggest clubs to keep their best players but suggested Kane could yet remain at Spurs for his entire career.

Asked what Spurs needed to do to keep him, Kane said: "I've always said just keep progressing, keep getting better. We want to start winning trophies -- that's the aim. As long as the club keeps doing that, then I'm happy here."

Questioned about whether clubs were powerless to stop players from leaving, he said: "If a player wants to go, then why would you stop him?

"He's not going to be in the club, he's not going to want to play every game, he's not going to put his heart on the line.

"From Coutinho's point of view, I think he's been very professional in the six months he's played this year, and Liverpool have got a good offer from Barca and accepted it.

"I wouldn't say clubs are powerless, but I can see why if a player wants to go you would let him go.

"It's hard to talk about it but I guess you assess the situation at the time and see what's best for the team and what the manager wants to do, and you go from there."

Kane's quickfire double and Jan Vertonghen's first Spurs goal since 2013 ensured progress in the FA Cup, which the striker believes represents this season's best chance of winning the trophy he craves.

"We've been close in the league in the last couple of years but the aim of the game is to win trophies and that's what we've got to try and do," he said.

"We're still in the Champions League and the FA Cup. We know the Champions League will be tough so the FA Cup's one where we have a good chance.

We'll be one of the favourites and we've just got to see who we get in the next round and go from there. This year, especially with the league being out of contention, it's a chance for us to win a competition.

"Of course we want to finish in the top four, and once the Champions League starts there's going to be a lot of games, but I think we've got a good enough squad to rotate."

Vertonghen said Spurs wanted to go one better after losing in last season's semifinals to Chelsea, adding: "This team has been waiting for a while for a trophy. A lot of the players haven't even won a trophy yet. I think the team deserves a trophy and that's what we're working for every day.

"Last year we were so close to playing in the final. We just felt we could be up there. It's big, the FA Cup might be the biggest cup in the world. We just want to go through to the final and win a trophy."