He retired from representative rugby due to a knee injury.

She did not play as a senior due to a knee injury and National Team commitments.

In June 2011, Cooper announced his retirement from rugby due to a knee injury.

Craig said he was staying out until the Syracuse game due to a bad knee and too much work in the university.

In 2013, Paul is doing his last world tour before retiring due to a severe knee injury.

He would leave the army due to a knee injury, however throughout the season he would show little signs of any complications from the injury.

He lost via knockout only 22 seconds into the first round due to a flying knee.

He was also conscidered a substantial talent, but had to cut down due to a knee injury.

He did not make the 2008 Wolverines due to a knee problem, but was advised to try out again after his knee healed.

He won the fight via KO early into the first round due to a flying knee.