Sport360’s Joy Chakravarty discusses Andy Sullivan’s one-shot lead at the DP World Tour Championship heading into day three, Argentine Emiliano Grillo’s incredible round of 64 and how the final two days of the tournament will provide the real test for the top stars on the leader board.

– VIDEO: Sullivan reacts to one-shot lead in Dubai
– VIDEO: Golf industry’s $113m wealth in Dubai
– Woods: Tiger named as one of America’s Ryder Cup vice-captains
– Lowry: Lowry spurred on by Republic of Ireland’s success