Manchester United fullback Luke Shaw could be a doubt for their clashes with Villarreal and Chelsea after appearing to suffer possible concussion against Watford.
The left-back, 26, started in Saturday's 4-1 horror defeat at Vicarage Road.
But Shaw didn't last the whole 90 minutes as he was flattened in a collision with an opponent.
Shaw lay face-down on the turf as medics rushed to check on his condition.
And the defender was promptly withdrawn via the concussion sub protocol, which was implemented at the start of the Premier League season.
United are yet to issue an update on Shaw's condition.
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!