Veteran Spaniard Miguel Angel Jiménez reached the World Golf Championships-Accenture Match Play Championship quarter-finals for the first time in his career in Tucson.
In a surprisingly one-sided affair the 47 year old Spaniard, who won 7 and 6 against Ben Crane a day after the American had beaten Rory McIlroy 8 and 7.
But Graeme McDowell has still to make the last eight in Arizona after losing to Korean Y E Yang.
Northern Ireland's US Open Champion had come from behind in his first two games and threatened to do the same when he took the ninth and tenth to level.
But Yang, the player who beat Tiger Woods head-to-head in the 2009 US PGA Championship, went away from him again and clinched a 3 and 2 victory with a chip-in birdie at the 16th.
Luke Donald's bid to keep the trophy in English hands, meanwhile, looked like staying alive as he led rising star Matteo Manassero by four with five to play.
The 17 year old Italian is the youngest player ever to compete in the event and was on a real high after knocking out Steve Stricker and Charl Schwartzel.
But the 2009 British Amateur Champion, already a European Tour winner in his nine month old professional career, found Donald a much tougher proposition.
Manassero could not match the 33 year old's birdies at the first and fourth, bogeyed the next and then saw his opponent fire in his approach to three feet at the seventh.
Ninth seed Donald did lose the long eighth, but his response was immediate, a 20 footer for another birdie at the next and then a par on the tenth taking him five up.
Manassero, however, chipped in for eagle at the 13th when the match was in danger of ending there.
But Martin Kaymer, who needs to reach Sunday's final to replace Lee Westwood at the top of the rankings, was two down after 12 to American Hunter Mahan.
Yang will play Matt Kuchar next and another home player through is left-hander Bubba Watson. Kuchar beat Rickie Fowler 2 and 1, while Watson thrashed twice winner Geoff Ogilvy 6 and 4.
Because of a bad weather forecast for Sunday morning - a chance of snow even - the schedule has been changed so that both the quarter-finals and semi-finals will now be played on Saturday.
The quarter-finals will start at 7.10am local time (1410 GMT) and the semis at 11.45am (1845 GMT).
The final, 18 holes for the first time this year, will then tee off at 12.15pm Sunday (1915 GMT).
