On 13 September 2014 he made his debut for the senior side , playing for 20 minutes from the bench against Scarlets in the 2014 -- 15 Pro12 .
Crosbie joined the Leinster Academy ahead of the 2013 -- 14 season .
On 13 September 2014 Crosbie made Crosbie 's debut for the senior side , playing for 20 minutes from the bench against Scarlets in the 2014 -- 15 Pro12 .
Crosbie joined the Leinster Academy ahead of the 2013 -- 14 season .