McCullum to undergo back surgery

He been battlling a long-standing back problem while playing for Trinbago Knight Riders and after they were eliminated at the semi-final stage, he has opted to have an operation.

I don't think this will come as any major shock for anyone, as like you say there as been a niggling persistent problem there for some time. While holding off on the surgery to help the team is very brave of him (or stupid?) carrying on playing with an injury and especially to your back your running the risk of causing permanent damage so having the operation is a no brainer really.