The 11-goal forward was due to discover the cause of his problem after limping off during the FA Cup second-round draw with Droylsden on Monday night, but the big freeze has delayed the process.
"For some reason I've a tough problem in my hamstring and on Monday night I went on a run and it really tightened up," he told Guardian Series Sport.
"I was meant to go in but we've been snowed in here.
"At this moment in time I just want to stay injury free, that's massively important to me."
Source: PA
Source: PA