This didn't look good.
Hopefully Kurt Zouma hasn't suffered serious injury after he was stretchered off in agony during Chelsea's clash with Manchester United.
The young defender landed awkwardly after challenging for an aerial ball and could be heard screaming after catching his foot in the turf.
https://twitter.com/thePunditsSA/status/696381346755801090
It looked painful on the TV replays, with viewers expressing concern for the Frenchman on Twitter...
https://twitter.com/IanDarke/status/696381303168569345
https://twitter.com/tomwfootball/status/696380860107517953
https://twitter.com/ManUtd/status/696381148981829632
https://twitter.com/Andrew_Heaton/status/696381647701327875
Gary Cahill was brought on to replace Zouma, with the score still tied at 0-0.
