ROTHERHAM United striker Lewis Grabban was pulled out in the second half of the Macclesfield game after passing blood at half-time.
The Millers top scorer - who was among the substitutes - fell during the pre-match warm-up and received a blow to the kidneys.
“He was peeing blood at half-time, quite a significant amount too, and he obviously couldn’t come out for the second half,” said caretaker manager Darren Patterson.
Grabban had a watching brief and it puzzled fans who were unaware he had been stood down as a precaution. He has been checked out and will be monitored ahead of the weekend trip to Crawley.
Newcomer Sam Hoskins scored after just 15 seconds in the reserves 1-1 draw at Scunthorpe yesterday.
Ex-Owls boss Paul Sturrock and his assistant at Southend, Graham Coughlan the former Millers and Owls favourite, could be among the 30-plus names under consideration when the managerial vacancy comes up for discussion.