West Ham midfielder Mohamed Diame is set to miss the next three months of the season with a torn hamstring.

The Senegal international pulled up late on during the Hammers 3-2 Premier League defeat to Liverpool in severe pain.

Reports circulated after the game that he’d torn the muscle and his manager confirmed the prognosis:

“Not good, it does not take a medical expert to know it is a serious hamstring tear when he falls and stopped the way he did,” Sam Allardyce is quoted by ESPN.

“I would expect, in medical terms, for it to be a Grade 3 (injury) and that could be anything up to eight, 10 or 12 weeks.”

His absence saw the London club lose their 2-1 home advantage to the Reds and Allardyce feels that the incident was a pivotal moment:

“The loss of Diame with a hamstring injury didn’t help, we lost our forward momentum.”

The 25-year-old has been in fine form so far this season, producing a string of top drawer performances in a holding midfield role.

His match winning second half display against Chelsea has seen speculation that he may move on in January go into overdrive during the course of the last week.

Diame may have only arrived at Upton ark on a free transfer during the summer, but with a rumoured £6.5m buyout clause in his contract, it’s unclear whether he will be a West Ham player come February.