West Ham United have revealed midfielder Manuel Lanzini is facing up to six weeks on the sideline with a quadriceps injury.

The Argentine picked up the injury in training prior to the Hammers' 0-0 draw with Manchester United last weekend.

The 22-year-old, who is at Upton Park on a season-long loan from UAE outfit Al-Jazira, has found the back of the net on four occasions this season and adds to Slaven Bilic's injury woes with Dimitri Payet, Enner Valencia and Diafra Sakho already sidelined.