Stuart Dallas had to be substituted off due a facial injury midway through the second half of the friendly against Manchester United .
The Northern Ireland international was caught by the flailing arm of Anthony Martial in what looked to have been an accidental, unfortunate coming together between the pair.
Marcelo Bielsa opted to bring on Bryce Hosannah in his place. The 20-year-old academy product will likely continue in his place in this weekend's friendly against Western Sydney Wanderers if Dallas doesn't recover in time, with the extent of his injury unknown.
The Leeds United utility man, who was playing at right-back in place of the injured Luke Ayling, looked in some discomfort after being caught by Martial, while he was seen bleeding before being taken off.
Leeds play Western Sydney Wanderers on Saturday at 10:00 GMT, and you can follow all the action via our digital sport reporter Beren Cross, who is out in Australia.
