The world No. 1 McIlroy and No. 2 Spieth are scheduled to go off with Jason Day at 8:39 a.m. ET on Thursday and again at 1:49 p.m. ET on Friday.
“I'm very excited about the pairing for Rory and Jason,” Spieth said. “I've really, really enjoyed my time playing with both of them. I've been paired with them in the first couple rounds quite a few times, and in other rounds, too. I really haven't battled it out on the weekend with either one of them. Two obviously extremely accomplished players and guys I look up to, couple of the nicest guys out here.”
Spieth is one month removed from his Masters victory, McIlroy a week removed from winning the WGC-Cadillac Match Play Championship.
“It's going to be a really, really cool scene out there,” Spieth said. “It's going to be pretty wild out there. I think we're all going to embrace it and have a good time with it.
“This is the first two rounds of a golf tournament. Obviously, every shot is as important as the next and as important as the ones that are late on Sunday. But at the same time the first two rounds is about getting yourself in position. So, I wouldn't look much into any kind of rivalry that we may be trying to have in the first few rounds with all three of us, because we're trying to get ourselves just into position to win. And I really hope that all three of us can be there on the weekend and make it a really, really fun battle and then require some great shots closing in on those last three holes.”