Mauricio Pochettino has suggested that Moussa Sissoko, Tottenham's £30 million summer signing from Newcastle United, has not shown enough in training or matches to be involved in the first team.

Sissoko has been absent from the match-day squad for Spurs' last two Premier League games -- the 3-2 win over West Ham and Saturday's defeat at Chelsea -- after returning from a three-match ban for appearing to elbow Bournemouth's Harry Arter. He has only started four Premier League matches for Spurs.

In January, Pochettino said that anyone costing £25-30 million would have to be the club's "best player" and he says he expected more from the deadline day signing.