Due to the possibility of strong afternoon thunderstorms Sunday on Hilton Head Island, S.C., the PGA Tour announced a change to the final-round schedule of the RBC Heritage.

Sunday's round will now feature threesomes off split tees, with times listed from approximately 7:00 a.m. to 9:00 a.m. ET. The storm is expected to roll into Hilton Head around 2:00 p.m ET.

Third-round action got underway with Bryson DeChambeau holding onto a one-shot lead.