Key groups

Defending champions Cameron Smith and Jonas Blixt begin Thursday’s fourball play alongside Patrick Reed, making his first start since winning the Masters, and Patrick Cantlay (1:44 p.m. ET). European Ryder Cup stalwarts Justin Rose and Henrik Stenson are out with U.S. Ryder Cup stars Bubba Watson and Matt Kuchar (1:57). In Friday’s alternateshot format, Jordan Spieth and Ryan Palmer are out with Jon Rahm and Wesley Bryan (2:19) and Justin Thomas and Bud Cauley are playing with Gary Woodland and Daniel Berger (2:08).