Harlequins prop Will Collier to miss rest of season with knee injury

Harlequins have confirmed that prop Will Collier will miss the rest of the season with a serious knee injury.

The 23-year-old ruptured his anterior cruciate ligament on Saturday during the team's victory over Castres in the European Rugby Champions Cup.

Despite winning 47-19 in France, Quins were eliminated from the competition at the pool stage.

Collier recently signed a contract extension with the club until 2018.