Tiger Woods shot his lowest opening round in a major since 2012 with a two-under-par 68 at the US PGA Championship in San Francisco.
The 15-time major winner played alongside Northern Ireland’s Rory McIlroy, who finished level par at the year’s first major at TPC Harding Park.
They sit one behind joint leaders Jason Day and Brendon Todd.
Tom Lewis is two shots off the lead, with fellow Englishman Paul Casey – who made a double-bogey six on the 18th – and Ireland’s Open winner Shane Lowry a shot further back.