'Complex' knee injury rules Dan Leavy out of World Cup

Ireland flanker Dan Leavy is set to miss the Rugby World Cup.

Ireland's quest to win a first World Cup has suffered a major setback after Dan Leavy was ruled out of the tournament by a knee injury described by Leinster as "complex".

Leavy lasted only 11 minutes of Saturday's Champions Cup quarter-final victory over Ulster before he was carried from the pitch on a stretcher having replaced Sean O'Brien in the second-half.