JAKARTA, Indonesia (AP) Lee Westwood trailed Indonesian Masters leader Siddikur of Bangladesh by two strokes after the first round on Thursday.
Westwood birdied his last two holes to post a 4-under 68 at Royale Jakarta Golf Club.
He has a chance to regain the No. 1 ranking if he wins this week and fellow Englishman Luke Donald fails to capture the Heritage title on the PGA Tour. Westwood said he was just hoping to celebrate his 38th birthday on Sunday with a 34th victory worldwide.
Siddikur, the first Bangladeshi to win on the Asian Tour, shot 66, including two chip-ins for birdies.
A group of six players, including Thai star Thongchai Jaidee, were a stroke behind the leader. Westwood and six others were two behind the Siddikur.