AUSTIN, Texas (AP) A brief look at Saturday's rounds in the Dell Technologies Match Play (All times EDT):
FINAL FOUR: Dustin Johnson, Hideto Tanihara, Jon Rahm and Bill Haas.
GOING FOR THE SWEEP: A victory will make Johnson the first player to sweep all four World Golf Championships.
DEBUT: Rahm and Tanihara are playing the Match Play for the first time. Except for the inaugural winner, Jeff Maggert in 1999, no one has ever won in his debut.
AUGUSTA PRIZE: By reaching the semifinals, Tanihara will move into the top 50 in the world ranking next week and qualify for the Masters. Ross Fisher also will get into the top 50 and return to the Masters by reaching the quarterfinals.
MATCH OF THE DAY: Phil Mickelson rallied from 3 down at the turn to win the 10th and 12th holes. But he missed two putts to square the match, Haas made a 4-foot birdie on the 15th hole to go 2 up and close him out on the 17th.
SHOT OF THE DAY: Alex Noren made a 40-foot birdie putt to win his third straight hole and square his match against Dustin Johnson. It was the only time in 76 holes Johnson has played this week that he wasn't leading a match.
KEY STATISTIC: Johnson is the only semifinalist who has never trailed in a match all week.
NOTEWORTHY: For the second straight year, all four quarterfinal matches ended before the 18th hole.
QUOTEWORTHY: ''He looks unbeatable.'' Tanihara on facing Johnson in the semifinals.
SEMIFINALS LINEUP: Johnson vs. Tanihara, Rahm v. Haas.
TELEVISION: Sunday, 10 a.m. to 2 p.m. (Golf Channel); 3 p.m. to 7 p.m. (NBC).