Rory McIlroy withdraws from Arnold Palmer Invitational due to back spasms

Rory McIlroy is struggling with a back issue (Mike Egerton/PA) - (PA Wire)

Rory McIlroy has pulled out of the Arnold Palmer Invitational after experiencing back spasms ahead of his third round at Bay Hill.

The Northern Irishman was four under for a share of ninth place heading into Saturday’s play but made the decision after experiencing discomfort, which failed to resolve during a brief hit on the driving range.