Liverpool winger Jermaine Pennant requires surgery on a stress fracture of his right shin and is expected to be out for 10 weeks.
Jermaine Pennant was signed by Liverpool in July 2006
The winger limped out of the Reds' Champions League defeat at Besiktas on Wednesday after carrying a problem for most of the season.
Club spokesman Ian Cotton said: "For the last eight weeks Jermaine has undergone intensive treatment.
"But it has now been decided he requires surgery."
Liverpool signed Pennant from Birmingham in a £6.7m deal in July 2006.
On Wednesday he came off in the 59th minute of the 2-1
Champions League group stage defeat in Turkey.