Tiger Woods will have to wait until Monday to try and take the world No 1 spot after a fierce storm struck at Bay Hill.
Woods is looking to regain the top billing he has not held since October 2010, and moved a shot closer when he birdied the par-three second to move three strokes clear at the Arnold Palmer Invitational in Orlando on Sunday.
The 37-year-old, who moved into the lead with a third round 66 on Saturday, needs to win the Florida tournament - for what would be the eighth time - to dislodge Rory McIlroy at the game's summit.
But almost straight after sinking his 10 foot birdie putt to widen the gap, the horns rang around the course to warn of an incoming storm and play was suspended.
When the storm came, it hit hard, blowing television cameras over and leaving the course in a mess. And with a big clean-up operation needed it was decided two hours after the suspension that there would be no more play on Sunday.
"The golf course is gone, bunkers are gone. We're going to need time for the course to drain," PGA official Mike Russell said through the organisation's Twitter account.
The 44 players, who still have to finish their rounds, will re-start at 10am local time (2pm UK) on Monday morning.
When play stopped on Sunday, Tiger's playing partner Rickie Fowler stood on nine under par, along with fellow Americans Keegan Bradley, Ken Duke and John Huh.
Sergio Garcia will not be returning on Monday though after pulling out after 12 holes of a horror final round which featured a nine at the par five sixth.
At one point he climbed into a tree to play out an errant ball and called time on his tournament not long after.
Joint-halfway leader Justin Rose, who slipped two behind after a poor finish to his round on Saturday, managed just two holes but dropped another shot to fall to eight under. He'll resume four strokes behind Tiger although has plenty of time to recover.
The best completed round of the day on Sunday belonged to Bubba Watson, who moved from one over to four under with a finishing 67.