World number three Dustin Johnson is expected to play again in 2019 despite undergoing knee surgery.
Saturday's play was ultimately suspended due to inclement weather after lightning struck East Lake Golf Course in DeKalb County, Georgia.
The first-round lead belongs to Justin Thomas, Brooks Koepka and Xander Schauffele at East Lake.
With the format changed for the Tour Championship, Justin Thomas will take a lead into the deciding FedEx Cup event.
Justin Thomas moved top of the FedEx Cup standings after his win at the BMW Championship.
Hideki Matsuyama could do no wrong after taking the tournament lead on Friday, while Tiger Woods struggled again.
Patrick Reed continued his consistent showing at the Northern Trust to grab the lead after the third round.
Dustin Johnson backed up his opening-round 63 to take the lead at the Northern Trust.
Troy Merritt leads the Northern Trust, but Dustin Johnson made a fine start in New Jersey.
World number one Brooks Koepka celebrated a three-stroke victory after carding a five-under-par 65 in Memphis on Sunday.