Sheffield Wednesday could be without striker Marcus Tudgay for up to four months after he suffered a freak foot injury.
The 23-year-old cut his toe whilst at a family barbecue, severing a tendon that may require surgery to repair.
Manager Paul Sturrock remains hopeful he will have Tudgay available for The Owls' Championship opener on August 5 but concedes he could be without the former Derby front man for an extended period.
"We're not sure of the severity," Sturrock told the club's official website.
"If it needs surgery he will be out for several months. If not, he will be back training in a week or two."
Meanwhile, Sturrock could also be without Richard Wood and Wade Small for the start of the season after the pair picked up injuries during training.
Defender Wood has damaged his groin, while midfielder Small has torn his calf muscle.
Both are doubts for the trip to Preston at the beginning of August.