QPR striker Jamie Mackie is facing up to three months on the sidelines after back surgery.
The London club have revealed that the 32-year-old was due to undergo a spinal decompression procedure on Tuesday to address a disc problem.
A statement on the club's official website, www.qpr.co.uk, said: "Jamie Mackie is set for a prolonged period on the sidelines owing to a back injury that requires surgery.
"The 32-year-old will undergo spinal decompression surgery today and is expected to be sidelined for between two to three months.
"Everyone at QPR wishes Jamie a speedy recovery."
Head physio Matt May added: "Jamie has a bulged disc in his back that's pressing on his nerve. He's got to have a spinal decompression. It's the kind of injury that can happen to anyone - the body at some point fails.
"He'll need to rest and allow for the healing to take place initially and then he can focus on getting back to full fitness."
Mackie has not played since he was sent off in a 1-0 Sky Bet Championship defeat at Preston on December 2.