Jon Rahm and Brooks Koepka will face off in the last-16 at the WGC-Dell Technologies Match Play, after they secured progression from the group stage on Friday.
Top-seed Rahm was defeated 3 and 2 by Patrick Reed, who was already eliminated, while Koepka needed a birdie on the last hole to beat Shane Lowry and go 3-0 in group play.
Scottie Scheffler and Billy Horschel set up a replay of last year's Match Play final, after they won their respective groups.
Following a loss to Ian Poulter in the second round of play, Scheffler recovered strongly to defeat Matt Fitzpatrick 5 and 4, before then taking the playoff out with both at 2-1. Horschel tied with Thomas Pieters after 18 holes to guarantee his place.
Dustin Johnson went 3-0 in the group, after he was able to see off a closing two birdies from Max Homa and win 1-up.
He will face 49-year-old Richard Bland, who went 2 and 1 over countryman Lee Westwood to finish Group 9 with two wins and a tie.
Seamus Power lost his final game to Keith Mitchell in Group 4, but still managed to top the group and secure a last-16 tie against Tyrell Hatton. In the process, the 35-year-old Irishman has also secured his first Masters appearance.
Collin Morikawa secured passage to the knockout phase, defeating Jason Kokrak 1-up, while Adam Scott, Abraham Ancer, Kevin Kisner also managed to make the last-16.
Meanwhile at the Corales Puntacana Championship, Ben Martin leads Alex Smalley by two strokes after 36 holes, shooting another six-under 66 for the day.