Hewitt, Blake Into Semis at ATP Las Vegas

Top-seed Lleyton Hewitt showed former-No. 1 form Friday at the blustery ATP stop in Las Vegas, rolling over German Philipp Kohlschreiber 6-2, 6-0 to gain the semifinals at The Tennis Channel Open.

In Blake's night match winds were at a gusty 29 mph, with the wind chill dipping into the low 40s, but that didn't stop the American from rolling over Dane Kenneth Carlsen 6-4, 6-4.

"It was tough conditions and I wanted to get it done early," said Blake who saved all four break points he faced. "Luckily I handled (the cold) pretty well tonight."

Blake will now face Croatian "Dr." Ivo Karlovic, who had a 7-6(4), 6-4 upset win over No. 3 seed Tommy Robredo.

"It is a satisfying win," said Karlovic after taking out the Top 20-ranked Spaniard. "It is difficult to play with the wind."

Xavier Malisse retired with a left Achilles injury down 6-3, 2-0 to American Paul Goldstein.

"You obviously hate to see a competitor cut short by injury," Goldstein said after the match. "Midway through the first you could tell he wasn't moving, he wasn't explosive, you hate to see that happen...These semifinal are few and far between for me so I am pretty happy."

Malisse said the injury was nothing serious and he was looking to the back-to-back Masters Series events coming up at Indian Wells and Miami.

"It's just a little pain in the Achilles, but you know it's tough to play when you're not 100 percent," Malisse said. "It doesn't feel good right now but you know I gotta look for it and look at Indian Wells and Miami, the bigger ones and try to get set for there."

Goldstein says his meeting with Hewitt will be about making the Australian work.

"We could be out there for three hours," Goldstein said. "And from a conditioning standpoint, I have no problem with that."

Saturday's semifinals will feature (1) Hewitt vs. Goldstein, (5) Blake vs. Karlovic, and in the doubles Aspelin/Perry vs. Levinsky/Lindstedt, and Bryan/Bryan vs. Coetzee/Wassen.