The calf is a notoriously difficult injury to get over. It's probably just about the worst muscle pull you can do in terms of recovery. Now obviously we don't quite know the extent and it appeared fairly minor at first viewing but I wouldn't be surprised if this drags on 3/4 weeks.
I don't think it's muscular though (in terms of being a pull,strain, or tear) - seemed an impact one after he got kicked there, so hopefully that means he should be back sooner rather that later
It's a good thing that Lindelof has become better player by the usual case of United players being better when they are not playing, so based on that we should be good.
