West Ham United have confirmed Manuel Lanzini has been ruled out for six weeks after suffering a quadriceps injury, the latest blow to manager Slaven Bilic's attacking options.
The 22-year-old Argentinian missed the goalless draw with Manchester United on 5 December after picking up the knock in training and is now expected to miss the busy festive period.
A short statement on West Ham's official website read: "Lanzini underwent a scan on Monday (7 December) and will now begin a period of rehabilitation which is expected to keep him out of first-team action for a period of up to six weeks."
The attacking midfielder, who is on a season-long loan from UAE side Al-Jazira Club, is expected to miss the club's next eight games, including fixtures against Southampton and Liverpool, in addition to the FA Cup third-round tie with Wolverhampton Wanderers.
West Ham's options in attack have been decimated by injuries in recent weeks. Last week the club confirmed Diafra Sakho will undergo surgery to address a thigh injury suffered in the 1-1 draw with West Brom. The Senegal international is expected to be ruled out for three months.
Victor Moses joined the lengthening injury list during the goalless draw at Old Trafford, limping off after 37 minutes with a hamstring problem. Bilic suggested after the match the winger, on a season-long loan from Chelsea, could also be ruled out for six weeks. Moses will undergo a scan to discover the full extent of the problem on Tuesday (8 December).
Bilic said: "We have to wait for a scan but it doesn't look good. It's not like cramp. I don't know if it's three, four, five or six weeks."