Golf: Koepka equals lowest round in PGA Championship history, while Woods struggles in first day

Koepka carded seven birdies in a flawless opening round of 63 to set a new course record on the fearsome Black Course where Tiger Woods was the only player to finish under par in winning the 2002 US Open. Masters champion Woods had threatened to recover from a nightmare start when he eagled the fourth, his 13th hole of the day, to get under par for the first time, only to drop three shots in the next four holes and finish two over, nine behind Koepka. New Zealand's Danny Lee was just a shot off the lead after carding a brilliant 64 in the breezier afternoon conditions, with England's Tommy Fleetwood, who finished second to Koepka in last year's US Open at another Long Island venue Shinnecock Hills, another three strokes back after a 67.