The signs didn't look good for him when he went down at St James's Park on Saturday, and on Monday Liverpool fans got the news they'd been dreading when Jurgen Klopp ruled Mohamed Salah out of the second leg of the Champions League semi-final against Barcelona.
It was already a pretty big ask for the Reds to recover from the 3-0 deficit they were faced with after the first leg, but doing so without their concussed top scorer is now going to be even tougher.