Pebble Beach Pro-Am: Phil Mickelson forced to wait as he takes three-shot lead into delayed fifth day
Mickelson is on the verge of his fifth victory at Pebble Beach
The American, who started the final round on Sunday at Pebble Beach three shots back, ended with a three-shot lead with two holes left to play.
After a rain-delayed start, Mickelson had produced a blemish-free round and holed six birdies to move to 18 under at the top of the leaderboard before play was called off.
Third-round leader Paul Casey, who mixed two bogeys with two birdies, was at 15 under with three holes remaining, tied with Scott Stallings who finished with a 66.
Australian Jason Day and Si Woo Kim, of South Korea, were in the clubhouse on 13 under.
Scot Russell Knox closed at nine under after a fourth-round level-par 72, one shot clear of Northern Irishman Graeme McDowell.
Play will resume at 8am (4pm GMT) on Monday.