Jim Furyk and Graeme McDowell will be the last pair to tee off Sunday, as they enter the final round tied at 1-under and two shots ahead of third place Fredrick Jacobson. Jacobson will be paired with Lee Westwood, who shot 3-under in one of yesterday's best rounds and is tied at 2-over with Ernie Els, Blake Adams, and Nicolas Colsaers.
Seventeen-year-old amateur Beau Hossler starts the day four shots behind the lead and is paired with Jason Dufner.
Tiger Woods, who shot 5-over with six bogeys after starting yesterday tied for the lead, will play with Casey Wittenberg.
The full pairings and tee times are below (all times CT).
11:20 p.m.: Stephen Ames, Joe Ogilvie
11:30 p.m.: Bo Van Pelt, Jason Bohn
11:40 p.m.: Jason Day, Simon Dyson
11:50 p.m.: Jesse Mueller, J.B. Park
12:00 p.m.: Michael Allen, Keegan Bradley
12:10 p.m.: Rod Pampling, Matthew Baldwin
12:20 p.m.: K.T. Kim, Zach Johnson
12:30 p.m.: Davis Love III, Nicholas Thompson
12:40 p.m.: Kevin Streelman, Alistair Presnell
12:50 p.m.: Marc Warren, Morgan Hoffmann
1:00 p.m.: Darron Stiles, Hiroyuki Fujita
1:10 p.m.: Francesco Molinari, Jeff Curl
1:20 p.m.: Rickie Fowler, Patrick Cantlay (a)
1:30 p.m.: Ian Poulter, Matteo Manassero
1:40 p.m.: Branden Grace, Phil Mickelson
1:50 p.m.: Bob Estes, Charl Schwartzel
2:00 p.m.: K.J. Choi, Nick Watney
2:10 p.m.: Steve Stricker, Robert Karlsson
2:20 p.m.: Jonathan Byrd, Alex Cejka
2:30 p.m.: Jordan Spieth (a), Angel Cabrera
2:40 p.m.: Steve LeBrun, Hunter Mahan
2:50 p.m.: Raphael Jacquelin, Kevin Na
3:00 p.m.: Scott Langley, Adam Scott
3:10 p.m.: David Toms, Michael Thompson
3:20 p.m.: Aaron Watkins, Charlie Wi
3:30 p.m.: Sergio Garcia, Justin Rose
3:40 p.m.: Padraig Harrington, Hunter Hamrick
3:50 p.m.: Casey Wittenberg, Tiger Woods
4:00 p.m.: Matt Kuchar, Martin Kaymer
4:10 p.m.: Retief Goosen, John Peterson
4:20 p.m.: Jason Dufner, Beau Hossler (a)
4:30 p.m.: John Senden, Kevin Chappell
4:40 p.m.: Webb Simpson, Nicolas Colsaerts
4:50 p.m.: Blake Adams, Ernie Els
5:00 p.m.: Lee Westwood, Fredrik Jacobson
5:10 p.m.: Jim Furyk, Graeme McDowell