Tim Ruffles has undergone surgery on his right knee, which he injured in last weekend’s game against Hawthorn.

The knee reconstruction was carried out on Thursday and Ruffles was discharged from hospital yesterday.

The 19-year-old will spend several weeks recovering from the operation before undertaking the appropriate rehabilitation program.

The timing of Ruffles’ return to playing in season 2011 will be determined once he has completed the rehabilitation program.