(CNN) -- Former world number one Lleyton Hewitt reached the semifinals of the U.S. Clay Court Championship in Houston with a 6-3 6-4 win over Spain's Guillermo Garcia-Lopez.
Hewitt is battling back to his best with a fine run on the green clay of Houston.
Hewitt is in fine form as he continues his recovery from hip surgery last year and is bidding for his first appearance in an ATP final since Las Vegas in 2007.
Russian Evgeny Korolev, who beat Argentina's Guillermo Canas 2-6 6-3 6-4, stands in his way.
Hewitt, who also reached the semifinals in Memphis earlier this year, served for the match at 5-2 in the second set, but was broken to give Garcia-Lopez late hope.
But the Australian finally sealed it on his fourth match point in his next service game.
"From 3-2 in the first set to 5-1 in the second, I played great," Hewitt told the official ATP Web site www.atpworldtour.com.
"He started going for everything because he had nothing to lose. He was swinging from the hips. It made the match hard to close out."
The other semifinal will be between Bjorn Phau and Wayne Odesnik of the United States.
Phau beat fellow German Tommy Haas 6-3 3-6 6-3 while Odesnik saw off compatriot John Isner in three close sets.
In WTA Tour action, top-seed Nadia Petrova of Russia reached the semifinals at Ponte Vedra Beach in Florida with a 4-6 6-3 7-6 victory over seventh-seeded Ukrainian Alona Bondarenko.
She next faces fifth-seed Aleksandra Wozniak of Canada, a 6-3 3-6 7-6 winner over Austrian Tamira Paszek.
Russian Elena Vesnina and second seed Caroline Wozniacki of Denmark will contest the other last four clash.