His left leg was tackled alone .
Collingwood star utility Tarkyn Lockyer was injured in the air during a tackle of a Cats player early in the round 3 clash against Geelong .
Tarkyn Lockyer 's left leg was tackled alone .
Collingwood star utility Tarkyn Lockyer was injured in the air during a tackle of a Cats player early in the round 3 clash against Geelong .