The 31-year-old tore medial ligaments and raptured his anterior cruciate ligament in the defeat to West Ham last month.
The former England international has had successful operation, but is likely to miss the rest of the season.
The 31-year-old tore medial ligaments and raptured his anterior cruciate ligament in the defeat to West Ham last month.
The former England international has had successful operation, but is likely to miss the rest of the season.
