Ronnie O'Sullivan hit two centuries as he eased to a 5-2 victory over Sam Baird in his opening match at the Evergrande China Championship.

O'Sullivan, who also had a break of 91, was joined in the last 32 in Guangzhou by reigning world champion Mark Selby after his 5-1 defeat of Thailand's Noppon Saengkham.

China's world number four Ding Junhui came through with a 5-2 win over Alfie Burden while Matthew Stevens came from 4-2 down to edge out Antrim potter Mark Allen 5-Ro4. John Higgins, Judd Trump and Marco Fu also made progress.

Ireland's Fergal O'Brien saw off Mark King King 5-3 yesterday to make the last 32 and is up again tomorrow against Norwegian Kurt Maflin.