Uh oh:
The Belgian Waffle went on to elaborate a tiny bit, saying that it appeared to be a foot injury and that de Bruyne was able to walk to the locker room, but any injury that forces a player off in the middle of a match is serious enough that we should be at least a little concerned.
If De Bruyne does miss any time, that'd be a big blow - he's been killing it with Genk of late, and as a prospect he could do with all the playing time he can get. With luck it's nothing major. Please stop getting injuries, Chelsea-types!