Weekley's never all just about golf. He explained how his stomach gave him some "reflux" before the round he thought "I was going to do a little yodeling out there."
Weekley kept his gastrointestinal issues mostly to himself on the course as he posted his 14th career round in the 60s out of 22 played here.
Donald came out firing in the second round with birdies on the second, sixth and seventh holes. He needed par saves, though, on Harbour Town's three finishing holes, including a testy four-footer on No. 18, to reach the weekend.
He said staying No. 1 is a motivator. "But the goal obviously is to get in contention and win," Donald said. "You can't control the other stuff."
Not everyone was as fortunate as Donald.
Those missing the cut here included No. 18 in the world and last year's FedEx Cup champion Bill Haas and a pair of three-time major champions in Ernie Els and Padraig Harrington. Els, who missed the Masters last week after 18 straight appearances, shot an 8-over 43 on his final nine holes, including a triple-bogey 7 on the 18th that kept him from playing the weekend.
Divots: Jim Furyk, the 2010 champion, was a stroke off the lead Thursday, but ballooned to a 75 on Friday to fall 10 shots off the pace ... Camilo Villegas and Alex Cejka withdrew because of injury. ... Bradley shot the tournament's low round of 64 in the second round. ... Bob Estes had the second hole-in-one of the tournament, hitting a 6-iron into the cup on the 183-yard fourth hole. Billy Mayfair had an ace on the seventh hole Thursday. It's the fourth time in the past five tournaments there have been two holes-in-one during competition. ... John Daly following his first-round 70 with a 74, good enough to make his sixth straight cut at Harbour Town. ... The Boeing 787 Dreamliner aircraft did a low flyover of Harbour Town's 18th hole. Boeing is the tournament's presenting sponsor.
Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.