By Emma Sanders

Ledley King has backed Vincent Janssen and Moussa Sissoko to become “big” for Tottenham despite the duo making slow starts to life at White Hart Lane.

The summer signings have flopped badly since joining in the last transfer window and they do not hold regular places in Mauricio Pochettino’s side.

However, former defender King expects them to make an impact under Argentine Pochettino but urges fans to have patience as they need time to adapt to their new club.

“They [Sissoko and Janssen] haven’t got off to the starts we would have hoped for but it’s still early. Janssen is still a young lad, he’s still learning the Premier League,” King told the Daily Mail.

“Sissoko didn’t have the best of pre-seasons after the Euros and it was a bit of a testing time for him not knowing if he was going back to Newcastle. I think they’re still trying to find their feet and form but these players are going to be big for the club.”

Pochettino has criticised Sissoko this season, claiming he has failed to live up to expectations after he made a late switch to the club on the final day of the transfer window, costing £30 million.

So far this season, he has made just four starts in the Premier League, making 12 appearances in all competitions, despite holding a starring role for Newcastle and even being appointed stand-in captain by manager Rafael Benitez in the final weeks of last season.

He was impressive for France in the European Championships in the summer but has lacked a spark since joining Tottenham and much the same can be said regarding Janssen.

The striker was brought with the intention of providing competition for Harry Kane but he has scored just three goals in 20 total appearances and has not started a game since the 1-1 draw against Leicester in October.

In other Tottenham news, Alderweireld speaks out about injury which left his leg unable to work.