American Patrick Reed produced a fine finish to win the WGC-Mexico Championship.
Jon Rahm fired a spectacular 61 on Saturday at the WGC-Mexico Championship, but Justin Thomas sits on top of the leaderboard.
American golfer Bryson DeChambeau sits atop the leaderboard after two rounds in Mexico.
World number one Brooks Koepka has no doubt Patrick Reed intentionally improved his lie during a controversial incident in December.
Brendan Steele and Cameron Davis lead the Sony Open in Hawaii as several big names missed the cut.
Collin Morikawa, 22, carded a flawless five-under-par 65 to top the leaderboard at Waialae Country Club in Honolulu on Thursday.
After a third play-off hole, Justin Thomas clinched the Tournament of Champions title.
Xander Schauffele is on track for back-to-back Tournament of Champions titles following Saturday's round.
Patrick Reed overcame difficult conditions in Hawaii to challenge Tournament of Champions leader Xander Schauffele.
No team had ever won the Presidents Cup after trailing at the start of the final round. But the USA changed that on Sunday.