The Austria international was forced off during the first half of Tuesday's win over Cardiff City and will now sit out the festive period
West Ham striker Marko Arnautovic will be sidelined for around a month with a hamstring injury, manager Manuel Pellegrini confirmed.
The Austria international was forced off after 40 minutes in Tuesday's 3-1 victory over Cardiff City.
However, while Pellegrini will no doubt be delighted with the win, he now has to contend with yet another injury, as his mercurial forward joins a lengthy injury list including Aaron Cresswell, Jack Wilshere, Ryan Fredricks, Andriy Yarmolenko, Carlos Sanchez, Winston Reid and Manuel Lanzini.