LINZ, Austria -- Top-seeded Angelique Kerber and No. Air Max 97 Rebajas . 2 Sloane Stephens reached the quarterfinals of the Generali Ladies in contrasting styles on Thursday. Kerber downed Alexandra Cadantu of Romania 6-1, 6-0 in just 50 minutes, while Stephens needed 2 1/2 hours to defeat Andrea Petkovic of Germany 7-6 (1), 4-6, 6-3. Kerber was broken while serving for the first set but was otherwise hardly challenged by the 72nd-ranked Cadantu, who scored just eight points in total on her own serve. "I felt really well on court," the 10th-ranked German said. "I was very relaxed and played well from the start." Kerber is one win short of securing the eighth and final spot at the season-ending WTA Championships in Istanbul. She takes on Patricia Mayr-Achleitner in the quarterfinals. The Austrian missed two match points at 5-3 in the second set before defeating Maryna Zanevska of Ukraine 6-1, 6-7 (1), 6-4. The 12th-ranked Stephens won just two of the first 14 points and later dropped 5-2 behind against Petkovic, but the American saved three set points before taking the opener in a tiebreaker. "I let out some screams which I normally dont do," Stephens said about her slow start. "I am just happy to get through." Stephens went 3-1 up in the second set before Petkovic reeled off 10 straight points to turn it around. Stephens managed an early break in the decider and the Australian Open semifinalist closed out the victory on her third match point. Stephens next plays Stefanie Voegele of Switzerland, who rallied to defeat Karin Knapp of Italy 4-6, 6-2, 7-5 to advance to her first quarterfinals since April. Earlier, Dominika Cibulkova of Slovakia routed Katarzyna Piter of Poland 6-0, 6-1 in less than 53 minutes. Piter, playing in her first main draw of the year, broke the seventh-seeded Cibulkova in the second set for her only game. In her fourth quarterfinal of the season, Cibulkova will take on two-time former champion Ana Ivanovic. Air Max 97 España . Lowry and the Raptors officially announced a four-year US$48 million dollar deal Thursday. The deal was reported last week but couldnt be made official until Thursday, when the moratorium on signings was lifted. "They were real factors. I did my homework. Air Max 97 Baratas Rebajas . Ashley Wagner will skate in the womens short program for a U.S. team thats in seventh place. Davis and White won the silver medal at the Vancouver Games and are two-time world champions. http://www.baratasairmax97.es/ . As if he had been rehearsing it, Vasquez looked around with a grimacing stare as he clinched two fists and flexed his muscles. What do you think of DeMar DeRozans face after he hits a big shot, he was asked moments earlier. TORONTO -- Georges St-Pierres road back to the Octagon is suddenly a lot bumpier. The former UFC welterweight champion, currently on hiatus from mixed martial arts but still training with an eye to a future return, revealed Thursday that he requires knee surgery. "Tore my left ACL in training. Surgery in a few days," St-Pierre said via Twitter. "Rehab, pain, hard work, no shortcuts - Ill soon be back at 100%. Thanks for the support." The Montreal mixed martial artist confirmed in a text to The Canadian Press that it is not the same knee that required reconstructive surgery in December 2011. "Im OK," he said. St-Pierre vacated his title in December saying he needed time away from the sport. But he kept training. The 32-year-old fighter has said he plans to return to MMA but has not provided a timeline. GSP has had his share of injuries. In the fall of 2011, he sustained a minor left knee problem and pulled hamstring. He believes that led to overcompensating with his right leg when he returned to training. An attempted takedown during a wrestling drill led to a torn anterior cruciate ligamment and a small tear to his internal miniscus. Air Max 97 España Baratas. That operation was done by Neal ElAttrache, the surgeon who looked after NFL star Tom Bradys knee in 2009. "My knee feels like it never happened ... Its very strong," St-Pierre said later. The Canadian returned in November 2012 to win a decision over Carlos (The Natural Born Killer) Condit at UFC 154, the then-champions first fight in some 18 months. St-Pierre (25-2) went on to beat Nick Diaz and Johny (Bigg Rigg) Hendricks, in a controversial split decision at UFC 167 last November, before opting to step away from the sport. He cited personal issues, without detailing them. Hendricks won the vacant 170-pound title at UFC 171 earlier this month with a unanimous decision over (Ruthless) Robbie Lawler. St-Pierre had to delay his first scheduled title defence back in 2007 due to sprained posterior cruciate and medial collateral ligaments. Surgery was not required then. And a 2006 fight was called off due to a groin problem. He also had a layoff in 2009 after tearing his adductor muscle in three places in a UFC 100 win over Thiago Alves. ' ' '