Play in the BMW Championship has been suspended until Monday following torrential rain at Conway Farms Golf Club in Illinois.
The siren sounded at 10am (3pm UK time) with just 36 of the 70 players on the course, although play resumed at 1.31pm (6.31pm UK time).
However, overnight leader Jim Furyk and playing partner Steve Stricker were due to tee off at 4.10pm (9pm UK time), meaning that finishing on Sunday evening was no longer a possibility.
As a result, tournament officials took the decision to postpone the final round. It is the third unscheduled Monday finish on the PGA Tour this year.
