By Harry Sykes

Mauricio Pochettino has revealed that he is “worried” about long-term absentee Erik Lamela.

The Argentine attacking midfielder has missed Spurs’ last six matches with a hip injury sustained in the League Cup defeat to Liverpool on 25 October.

The initial bulletins from the club were that it was only a minor problem but Pochettino admitted on Thursday that there is no timeframe for Lamela’s return to action.

Pochettino said, as quoted by the personal Twitter account of Ham & High sports editor Ben Pearce, that he is concerned about the 24-year-old.

“I’m not a doctor but we’re a little bit worried about his situation because his evolution’s not in the way we expect,” the manager explained.

Lamela will once again been absent this weekend as Tottenham prepare to host West Ham in the Premier League at White Hart Lane.

Spurs are aiming to get their season back on track after losing their last two games and securing just a single win from nine matches in all competitions.

Lamela has emerged as a key member of the first team in recent seasons following a difficult first two years at White Hart Lane.

The 24-year-old, who has earned 22 full Argentina caps, has scored two goals and supplied seven assists from 14 matches in all competitions for Tottenham this season.

In total, Lamela has scored 19 goals and provided 31 assists from 121 appearances for the London giants since joining from Roma for £30million in the summer of 2013.

In other Tottenham team news, the club have been hit by a major injury blow ahead of their clash against Swansea.