Aberdeen Brunei Senior Masters

Heggarty and O'Sullivan endure tough start in Brunei

Denis O’Sullivan and Jimmy Heggarty have a mountain to climb to get back into contention after suffering back-nine collapses on the first day of the Aberdeen Brunei Senior Masters.

Little-known Boonchu Ruangkit of Thailand and Australia’s David Merriman share top spot after they signed for rounds of seven under par 64, but the two Irishmen in the field had to settle for 75s despite both reaching the turn in level par.