Jon Rahm's first two rounds as world No. 1 will be played alongside Bryson DeChambeau and Rickie Fowler.
Rahm, DeChambeau and Fowler highlight this week's featured groups at the WGC-FedEx St. Jude Invitational, which begins Thursday at TPC Southwind in Memphis, Tennessee.
It will be Rahm's first start since the 25-year-old Spaniard reached No. 1 in the world for the first time following his victory two weeks ago at the Memorial Tournament. DeChambeau missed the cut at Muirfield Village, snapping a streak of seven straight finishes of T-8 or better. Fowler has 12 top-10s in 29 WGC starts, but he's missed five of his last nine cuts on Tour.