West Ham United joint-chairman David Gold has revealed that Manuel Lanzini is likely to miss the next four to six weeks through injury.
The 22-year-old has only recently returned from a thigh injury, but was forced to limp off late in the first half of his side's 2-0 victory over Liverpool this afternoon.
Manager Slaven Bilic revealed after the match that it is not a "big" injury, although Gold expects the Argentine to be sidelined until February.
"We will know more about Manuel's injury after the scan on Monday but it could be 4/6 weeks. He was superb today," Gold wrote on Twitter.
Bilic added in his post-match press conference: "They have told me a little bit and I will hear more tomorrow. It is not big. It is the same, it is not the hamstring or the muscle, it is some kind of abductor and the tendon. I hope it is going to be like they have said now, just a little bit [of time out].
"If you watch the games again, the impact he made against Southampton and the way he orchestrated today with 22 players on the pitch, but with him bossing the game, [you can see] what he means to us."
West Ham, who are now unbeaten in seven matches, climbed up to sixth in the table with the victory.