LONDON -- Eric Dier believes there are not many players in the world who could replace Harry Kane for Tottenham Hotspur after the striker limped off with an ankle injury in Sunday's 6-0 thrashing of Millwall.
Kane, the Premier League's joint-top scorer this season, lasted just six minutes of the FA Cup quarterfinal at White Hart Lane after landing awkwardly on his right ankle, and left the stadium on crutches while wearing a protective boot.
The England international missed seven weeks and 10 matches after suffering ankle ligament damage in September and Tottenham manager Mauricio Pochettino said the latest injury looked similar, adding that it would be "difficult" for the Kane to play against Southampton next weekend. He will have a scan on Monday.
"There aren't many players in the world you can replace Harry with but it is a chance for someone else to step up -- not just the strikers but the whole team," Dier told reporters after the game. "Obviously Harry is very important for us, a big part of this team in many ways. I don't know how bad it is. Hopefully he is fit as soon as possible.
"Apart from that, it was great that Sonny [Son Heung-Min] got a hat trick and Vincent [Janssen] scored. Hopefully they will step up. They proved they can today. Hopefully everyone can pull their weight and we'll keep going forward."
The win was Tottenham's 12th in a row at home -- a run dating back to Nov. 19 -- and Dier added: "We've got a very good squad, we're on a good run, playing very well at the moment.
"We're all very disappointed about Harry's injury, hopefully he gets back as quickly as possible because he is very important for us. But as a team we can keep improving and playing this way and keep this run going."
Kane was replaced by Christian Eriksen against Millwall, who opened the scoring, while Son, who moved up front, scored a hat trick and substitute Janssen netted his first goal from open play for the club on his 30th appearance, and was mobbed by his teammates afterwards.
Janssen joined Tottenham from AZ Alkmaar for £17 million in the summer, having only spent one season in the Eredivisie following his move from the Dutch second division.
"It is tough coming from a different country," said Dier, who was raised in Portugal and joined Spurs from Sporting Lisbon. "I don't think people realise how tough it is. Especially if you look at where Vincent has come from in such a quick period of time -- from where he was and where he is now.
"I think he is just adapting to everything. Everyone was obviously delighted he scored the goal, I'm really happy for him and hopefully he can score more now."
The Millwall match could be the last cup game at White Hart Lane but asked if it was a nice result for the history books, Dier said: "I don't know about that yet, but it was a really nice win. I hope the fans are happy -- we go to Wembley now [for the semifinal] and everyone is really excited.
"They're going to be great semifinals and final. It has worked out well for us, everyone is really excited, it has worked out well for the fans -- good for the neutrals, great for the FA Cup. It is really exciting for everyone. We now go to Wembley and there will be two big semifinals and hopefully two great games."