Manuel Lanzini will miss West Ham's friendlies against Werder Bremen

Manuel Lanzini will sit out West Ham's friendly double-header against Werder Bremen with a knee injury.

The Argentine is currently restricted to gym work on the club's pre-season tour of Germany but is expected back in training after the weekend.

Sofiane Feghouli has returned to London for treatment on an unspecified problem, while the first of the two Bremen games on Friday night comes too soon for new signing Javier Hernandez.

The £16m striker did not join up with the squad until Thursday, but £25m signing Marko Arnautovic is ready to play and Angelo Ogbonna is back in training.

West Ham play Bremen on Friday and Saturday before taking on Altona 93 on Tuesday.