Jimmy White came close to pulling off a major upset against Ronnie O'Sullivan at the Champion of Champions tournament in Coventry.

The 57-year-old led O'Sullivan 3-0 before the world number three hit back to edge victory in their best-of-seven clash.

White, the reigning World Seniors champion, fired a break of 56 in the opening frame and continued to stretch his lead.

O'Sullivan won the next two frames before White blew a 38-point lead in the sixth enabling his opponent to turn the match around.

O'Sullivan was due to return later on Thursday to face either John Higgins or Stuart Bingham for a place in the semi-finals.