ISTANBUL, Turkey -- Li Na swept past the ailing Victoria Azarenka 6-2, 6-1 to earn a place in the semifinals of the WTA Championships at the expense of the second-ranked Australian Open champion on Friday. Marvin Harrison Youth Jersey . The fourth-seeded Li will play 2011 champion Petra Kvitova, who came from behind to beat Angelique Kerber 6-7 (3), 6-2, 6-3. Azarenkas loss meant Jelena Jankovic advanced to the semis before she had to play Sara Errani later Friday. Errani won that match 6-4, 6-4. Jankovic will play defending champion Serena Williams. Williams swept her group on Thursday. Williams has a 7-4 career edge over Jankovic, while Li and Kvitova are tied 3-3. Azarenka hurt her back while serving in the sixth game of the first set and was clearly in pain for the rest of the match. She took a medical timeout and received treatment during several changeovers but stayed on court despite being hardly able to move and wincing in pain, at one moment coming to tears. "I just wanted to try to do my best for the fans who came and watched our match, for respect for my opponent. It was just about trying to do the most you can out there," Azarenka said. She did win one game with some ferocious serving, but mostly stayed in the middle of the baseline and tried to hit quick winners if the ball came her way. "You know, in the end of the day, its my decision what Im going to do," Azarenka said. Azarenka said her back suddenly seized up as she tried to serve hard but that the trainers told her there was no structural damage. The fifth-seeded Kvitova, a former Wimbledon champion, led 4-1 before Kerber battled back to level at 5-5. In the tiebreaker, Kerber kept up the pressure on Kvitova, who double-faulted to set up three set points for her opponent. Kerber converted the first with a service winner. In the second set, Kvitova broke for the second time in the seventh game by first playing a crisp volley winner and then hitting a powerful return. "The beginning of the second set was really tough. She had a lot of chances," Kvitova said. "I just tried to play my game, play some winners, and go for the net." There were three straight breaks at the start of the third, before Kvitova fought off two break points to go up 3-1. She sealed the win thanks to two straight errors by Kerber. Kerber was seeded eighth after the withdrawal of third-ranked Maria Sharapova because of a shoulder injury. Kvitova had to withdraw from last years tournament with an injury after the first match. "I gave everything I could today," Kerber said. "Of course, Im a little bit disappointed, but Petra was playing very well in the important moments. My serve was not really the best today, but yeah, I was just trying everything." Li, who lost to Azarenka in the final of the Australian Open and in both previous round-robin matches at the WTA Championships 2012 and 2011, said her toughest challenge Friday was mental. "I mean, today the match is not about tennis, about fitness ... because I thought maybe after the first set she will give up or retire, but she still try to continue to play," Li said. "I think its tough because I have to focus, hope all time, because you never know what happen on the court." In the Australian Open final, it was Li who was in trouble. She twisted her ankle and hit her head in a stumble before losing in three sets. "Next time we both have to be healthy on the court," Li said. Li won the group 3-0, while Azarenka finished 1-2. Azarenkas loss meant Jelena Jankovic advanced to the semis before she had to play Sara Errani late Friday. Jankovic will play defending champion Serena Williams in the semifinals. Williams swept her group on Thursday. Although she did not play, Williams did appear on court, to collect the award for finishing the year as No. 1 in the world. Williams has clinched the year-end No. 1 ranking for the third time in her career after 2002 and 2009. Li is through to her first semis in three appearances in the elite event that brings together the top eight women. Despite failing to reach the semis, Azarenka said she was pleased with her year. "Im No. 2 in the world. I had great results in the big tournaments and I had injuries," Azarenka said. "So, its that balance of good and unfortunate. I think I can learn a lot from these little things to prevent maybe some of the injuries." Kvitova finished 2-1 in her group and Kerber was 1-2. Marvin Harrison Womens Jersey . Both the top-seeded Djokovic and sixth-seeded Fish took relatively easy paths, with the Serb winning when opponent Jo-Wilfried Tsonga retired in the second set with a sore arm and Fish dominating Janko Tipsarevic in two quick sets. Colts Jerseys .com) - Devin Booker scored 19 points and top-ranked Kentucky put on a defensive clinic in an 83-44 obliteration of UCLA in the CBS Sports Classic.PHOENIX - Tom Brady already had a child with actress Bridget Moynahan and was dating supermodel Gisele Bundchen when a Mexican television personality created one of the wildest moments in Media Day history here in Arizona before the 2008 Super Bowl.Ines Gomez Mont, a reporter for TV Azteca, showed up wearing a white wedding dress and veil and proposed to Brady, who was trying to lead the New England Patriots to the first 19-0 season in NFL history.Tom, Im in love with you! Will you marry me please? the immodest brunette shouted from the crowd. Im the real Miss Brady.Brady politely declined her proposal, saying: Ive got a few Miss Bradys in my life. Im a one-woman man. But youre beautiful. Anybody who would have the opportunity to marry you would be a lucky man.Maybe Gomez Mont put a hex on Brady. The Patriots lost to the New York Giants to ruin their perfect season. They lost again to the Giants in the Super Bowl four years later.Outrageous scenes like this have become the norm at the Media Day extravaganza. The event is a circus. More than 5,500 journalists, pseudo-journalists and other credentialed media are expected to gather for Tuesdays celebration at the US Airways Center.Last year in New York, an Austrian man dressed as Mozart, another guy wore a Waldo costume, Nickelodeons Pick Boy was in the house and Michelle Williams, former Destinys Child singer, asked players to sing.At least both teams are quite familiar with the silliness.The Seahawks played along nicely with the odd requests last year. A man asked Seahawks centre Max Unger if he could touch his long, scruffy beard. He said yes. A woman asked Seahawks defensive lineman Brandon Mebane for a kiss. He politely declined.Richard Sherman drew the largest crowd and he spoke for an hour. Marshawn Lynch predictably walked out and spoke only to NFL Networks Deion Sanders.All eyes will be on both players Tuesday, but its usually a non-player who steals the spotlight.Heres a list of the wildest moments in Super Bowl Media Day history:VOODOO: St. Louis Rams quarterback Kurt Warneer was outspoken about his Christian faith, but that didnt stop someone from making an unusual request in Atlanta in 2000. Dwayne Allen Womens Jersey. Do you believe in voodoo, and can I have a lock of your hair? Warner was asked. His response was a simple, polite No.The Rams beat the Tennessee Titans 23-16 and Warner was MVP of the game.____NO KISS FOR YOU: MTV star Downtown Julie Brown had a memorable exchange with Dallas Cowboys coach Jimmy Johnson in Los Angeles in 1993. Brown started with questions about fashion and Johnsons game-day attire. Then she told Johnson she was rooting for the Cowboys because they have young players who know her.When Brown asked Johnson if he had any special rules for his players, he replied: Yeah, dont kiss Julie Brown.The Cowboys beat the Buffalo Bills 52-17.____BOOMER MONTANA: A Japanese reporter confused Joe Montana with Boomer Esiason before the San Francisco 49ers played the Cincinnati Bengals in Miami in 1989.Montana was asked: Why do they call you Boomer?Everyone knew Montanas name and he led the 49ers to a 20-16 win for the third of his four Super Bowl titles.____O-CNN: That stands for Ochocinco News Network. Former Bengals wide receiver Chad Johnson tried his reporting skills in Miami in 2010. The attention-seeking Johnson asked the Saints and the Colts about strategies and nagging injuries.New Orleans won the game, 31-17. Johnson hasnt found a reporting gig since his career ended.____MYTH OR FACT: Perhaps the most popular story retold from Media Day involves former Washington Redskins quarterback Doug Williams in San Diego in 1988Legend says that Williams was asked: How long have you been a black quarterback?It turned out that was wasnt the exact question. A reporter was trying to determine the point that others were making too big of a deal about Williams skin colour and its relation to a quarterback playing well.Williams was MVP of the game, leading the Redskins to a 42-10 win over Denver.___AP NFL website: www.pro32.ap.org___Follow Rob Maaddi on Twitter: https://twitter.com/AP_RobMaaddi Cheap NFL JerseysCheap NFL Jerseys ChinaCheap Jerseys From ChinaCheap NFL Jerseys AuthenticWholesale Jerseys ChinaCheap NFL Jerseys ChinaNFL Cheap JerseysCheap NFL Jerseys ' ' '