We're off and sweating here at Quail Hollow, where another enormous gallery has turned out early to watch the marquee Rory-Rahm-Rickie pairing.
Day one proved to be tricky for most of the field,
The greens were noticeably slick Thursday, I explored that for Golfweek with comments from Koepka and Spieth.
Jaime Diaz looked into the difficulty of Quail Hollow as arguably the season's toughest major test (so far).
Media notes from Golfweek's Martin Kaufmann.
The weather forecast? Still ominous but Thursday was perfect and Friday is better than had been expected earlier in the week.