James Collins is consoled by Mark Noble as he goes off injured during West Ham's win over Tottenham

James Collins will not play for West Ham until next month after injuring his hamstring during Wednesday's win over Tottenham.

The centre-half was replaced during the second half, leaving the Hammers to finish the game with a back three featuring teenager Reece Oxford, a hobbling Angelo Ogbonna and midfielder Cheikhou Kouyate.

Collins will not be fit for a club return until after the next round of international friendlies, according to manager Slaven Bilic, who is now without at least six defenders for Saturday's trip to Goodison Park.

"It's his hamstring and it's not a couple of days," Bilic said. "We will wait until it settles down and assess it. The first information is that we should be happy if he only misses three games.

"After three games there is an international break, Easter and all that. But it's a big blow for us, the whole season he has been magnificent."

Angelo Ogbonna (C) needed an ice pack on his foot after the Hammers' 1-0 win

West Ham vice-chairman David Gold tweeted an update on Ogbonna's condition on Thursday, saying: "His foot was covered in a ice pack after the game but he said he would be OK."

But Bilic is definitely without Winston Reid, James Tomkins, Joey O'Brien, Carl Jenkinson and Sam Byram this weekend.

And Collins, whose participation in Wales' friendlies against Northern Ireland and Ukraine later this month must now be under threat, will also miss the FA Cup tie at Manchester United and a Premier League trip to Chelsea.