Jan 16 (Reuters) - Rory McIlroy was suffering from a back problem during his South African Open playoff loss to England's Graeme Storm on Sunday and the Briton will undergo scans this week to learn the extent of the injury and time he could be forced to sit out.
McIlroy has been injury-free since missing two months with a sprained ankle in 2015, a layoff that prevented him from defending his British Open title, and the latest setback could rule him out of next week's Abu Dhabi Championship.
"I am going for a scan.