Simpson's one of several players who has passed on FedEx Cup Playoffs events in the past for more rest. Tiger Woods, Jim Furyk, Shane Lowry and Tommy Fleetwood are among those who have without penalty.

RORY McIlroy was hot and tired when he finished the FedEx St. Jude Championship last year. He was No. 3 in the FedEx Cup. He beat only one player at the TPC Southwind and tied for 68th, finishing 26 shots behind.