WIMBLEDON, England (AP) – Andy Roddick was flat on his stomach at the baseline, not a particularly good place to be during a tiebreaker point at Wimbledon.

Down but not out, Roddick popped up, managing to reach the ball just in time to slice a forehand. It wasn’t pretty, but it kept the rally going, and his opponent helped by flubbing a backhand into the net.

Roddick gets plenty of attention for his serves, and they certainly helped him out of jams Wednesday against No. 12 Sjeng Schalken, including one at a Wimbledon-record 146 mph.

What’s new is that the U.S. Open champion is developing into a complete player, full of grit and guile, and he showed it in a 7-6 (4), 7-6 (9), 6-3 victory that put him in the semifinals for a second consecutive year.

“It’s just a matter of experiences,” Roddick said. “I’ve been in a lot more pressure situations, and I think that helps.”

He’ll have an edge in that department Saturday when he faces 63rd-ranked Mario Ancic of Croatia. Goran Ivanisevic’s protege beat No. 5 Tim Henman’s 7-6 (5), 6-4, 6-2, ending local fans’ hopes for Britain’s first men’s champion since 1936.

“It’s a tough one to swallow,” said Henman, 29. “I’ve never hidden behind the fact that this is the tournament I’d love to win the most. And the reality is that I don’t have an endless number of years for chances.”

Ancic might be only 20, and he’s past the fourth round at a Grand Slam tournament for the first time, but he shouldn’t be taken lightly. After all, he’s the last player to beat Roger Federer at the All England Club, shocking him in the first round in 2002.

That also was Federer’s last loss on grass, anywhere. He stretched his winning run on the surface to 22 matches by eliminating his predecessor as Wimbledon champion, No. 7 Lleyton Hewitt, 6-1, 6-7 (1), 6-0, 6-4.

“The way it’s going, I don’t have any reason to be too nervous,” said Federer, whose semifinal foe is No. 10 Sebastien Grosjean, a 7-5, 6-4, 6-2 winner over 66th-ranked Florian Mayer of Germany.

Federer’s won 12 Wimbledon matches in a row