Donald and Kaymer go through

England's Luke Donald has booked his place in the semi-finals of the WGC-Accenture Match Play Championship at Dove Mountain with a 5&4 win over American Ryan Moore.

The win was Donald's second-largest in this TaylorMade R11 Driver
, not quite matching his 6&5 success over Robert Allenby a year ago.
He was four shots up on his opponent at the turn after five front-nine birdies, and carried on in a similar vein on the back nine, wrapping things up with a 15-footer with four holes to spare.
The one hole Moore did manage to win after the turn could also have gone Donald's way, with him chipping in from off the green on the par-five 11th, having driven into the sand.
"I've been working hard and it's nice to see the work paying off. I made a bunch of birdies and made it hard for Ryan," Donald said afterwards.
"You do the same things, try and hit it close, give yourself opportunities and put pressure on your TaylorMade R11 Driver
."
The 33-year-old, who is searching for his first win on American soil in five years, will go from 9th to 3rd on the World Rankiongs if he lifts the trophy on Sunday.
Donald will face American Matt Kuchar in the semi-finals later on Saturday.
Kuchar overcame YE Yang 2&1. He had led by four at the turn, but after Yang dug in to win on the 10th and 13th holes, Kuchar held his nerve to chip onto the 17th green and then putt from three feet to win the match.
Martin Kaymer, who will replace Lee Westwood as the world's best player if he makes TaylorMade R11 Driver
through to the final, had to cling on to get the better of Ryder Cup team-mate Miguel Angel Jimenez.
The German did not drop a shot on the front nine and was four up with four to play before Jimenez battled back.
Kaymer had chances to halve the hole and win the match on the 15th, 16th and 17th holes but failed, leaving the Spaniard to birdie two of them and win all three to take the match down to the final hole.
Kaymer looked to have driven himself into a dangerous position, but a fine recovery with his third shot forced Jimenez to concede, giving Kaymer the win.
The US PGA champion now plays Bubba Watson in the semis after the American left-hander battled back from five down after 10 holes to beat his Ryder Cup teammate JB Holmes at the first extra hole.
With severe weather forecast for this weekend at Dove Mountain, the semi-finals have been brought forward to follow the TaylorMade R11 Driver
later on Saturday.