An ankle injury.
If we were mischievous we might suggest Wayne Rooney's absence for Manchester United's clash with West Ham may have more to do with his terrible performances of late rather than any physical ailment.
The captain hasn't scored for United since October, and Liverpool fans earlier this week took great glee in pointing out this odd comparison between Rooney and permanently injured Daniel Sturridge
https://twitter.com/Footy_Memez/status/672392528465928192
Rooney's injury is likely to mean a reshuffling of Louis van Gaal's options, and he could now face a race against time to be fit for their crucial Champions League clash with Wolfsburg midweek.
It seems some Manchester United fans are absolutely delighted that their main striker will be missing the game for some reason
https://twitter.com/ManUtd/status/672746363554291712
Actually they are bloody thrilled he's out
https://twitter.com/FutbolChief/status/672749605059194880
https://twitter.com/alexl102/status/672749249801691136
https://twitter.com/DanielOlumodi/status/672750305914810368
https://twitter.com/Zhewi/status/672748632223948800
https://twitter.com/Dibs_RS/status/672750343940280320
https://twitter.com/rAd88wAn/status/672748632391606272
Although some fans couldn't understand why you'd be happy to be without the former Everton man.
https://twitter.com/kinnay_21/status/672751490419859456
https://twitter.com/philallen02/status/672748413465829376
https://twitter.com/MrFlow_/status/672751593205317636
