Justin Rose reacts to his birdie on the third green during the third round of the BMW Championship. "A one-shot lead doesn't really mean much and it doesn't change my approach tomorrow as I just have to play better than the guys around me", Rose said.
Schauffele, 24, lipped out a nine-foot par putt at 18 to stumble back alongside McIlroy, who brilliantly regrouped after a "no frills" Friday 69 to grab a ninth-hole eagle and seven birdies in his score of 63.
It would clearly be a huge boost for Europe's Ryder Cup hopes if Rose was successful and, indeed, if he proceeded to win the $10million (£7.7million) FedEx Cup bonus at the Tour Championship on the Sunday immediately preceding the biennial dust-up.
"We'll see what Mother Nature gives us", White said. He needed 30 putts on Saturday.
Casey suffered a back problem on the eve of The Players Championship in May and was forced to pull out ahead of the first round at Sawgrass, although he returned to action a fortnight later in the BMW PGA Championship at Wentworth, finishing in a tie for 20th.More news: Florence expected to become 'major hurricane' by Monday
Spieth is at 23 and needs to get to East Lake (the Ryder Cup counts as a start) to reach the magic number. For someone like Bradley, getting to the Tour Championship would get him into all four majors next year. There's nothing wrong with 66, but the scoring average was just over 67. Tommy Fleetwood has two of them, Friday and Saturday.
The eight US players who qualified on Ryder Cup points are Rickie Fowler, Dustin Johnson, Brooks Koepka, Patrick Reed, Webb Simpson, Jordan Spieth, Justin Thomas and Bubba Watson. Fowler played in the final group at Aronimink in 2011 when it held the AT&T National, though he faded to a tie for 13th. He followed with 11 straight pars, even though he had chances from 15 feet and closer.
"I was looking up on the board, and everyone seemed like they were 3 under through eight, 5 under through nine".
For 54 holes, Woods is at 198, 12 under par.