Louis Oosthuizen is the leader after three rounds of the 2012 Deutsche Bank Championship, holding a three-stroke advantage over second-place Rory McIlroy.
Oosthuizen played a magnificent round of golf on Sunday, shooting an 8-under 63, which was tied him with Keegan Bradley for the best score of the day. Oosthuizen, a South Africa native, is at 19-under for the tournament after the solid effort, and hasn't shot worse than a 66 in any of the first three rounds.
McIlroy entered Sunday as the leader, but Oosthuizen's surge allowed him to leapfrog the Irish star, who finished at 4-under on Sunday and sits at 16-under overall. Dustin Johnson is in a tie for third place with Tiger Woods heading into the final day of the tournament, as Johnson finished Day 3 at 6-under, improving his overall score to 13-under. Woods shot a 68 for the second consecutive day after his opening-round 64. Bryce Molder and Ryan Moore round out the top five, as both Americans sit at 11-under for the tournament.
Dallas-area resident Hunter Mahan finished 1-under on Sunday, and sits in a tie for 32nd place at 3-under overall.
View and follow the full leaderboard at PGATour.com.
For more on the PGA Tour, visit SB Nation Golf.