ISTANBUL, Turkey -- Top-ranked Serena Williams breezed past Angelique Kerber 6-3, 6-1 to open her bid for a fourth ATP Championships title on Tuesday. Williams, the defending champion, had no trouble against Kerber, who also lost to the American 6-4, 6-1 in the round-robin at this event last year. Kerber was the only player to beat Williams last year - in Cincinnati - after the Americans first-round ouster at the French Open. "Today she was playing unbelievable, and I had actually no chance. I mean, she was serving great and also returning unbelievable," Kerber said. "So I was just giving all I could, but yeah, its tough to play against Serena like this." Williams was particularly effective with her backhand return, the shot she also used on her first match point. Kerber, who had two straight double-faults to surrender the first game of the second set, produced another to give Williams three match points. Although she is 32, considered a ripe age in tennis, Williams is enjoying the finest season in her career, having already won 10 titles. She added the French Open and U.S. Open titles to bring her Grand Slam record to 17 championships and is 74-4 for the year. Earlier, second-ranked Victoria Azarenka overcame an erratic performance to beat an ailing Sara Errani 7-6 (4), 6-2 in the opening match of tournament. "I was a little rusty at the beginning. I think its a little bit expected after a break, and playing right away against a top player always makes it a little bit difficult," Azarenka said. Williams, making her eighth appearance in the event, is looking to become the first player to successfully defend the title since Justine Henin in 2007. If she achieves the feat, she would equal Chris Evert for third most WTA Championships with her fourth. Henin was also the last to win 10 titles in a season, in 2007. Williams has clinched the year-end No. 1 ranking for the third time in her career after 2002 and 2009. Errani hurt her right calf in the third game of the second set and took a medical timeout to have it treated. Several times after that she seemed to be bothered by the injury and to favour her right leg, although she returned after the medical timeout to break Azarenkas serve to level at 2-2. She did not win another game though. "In the tiebreaker I felt a pain in my calf on serve," Errani said. "The first set was very tough, very long. I was running a lot." Errani served for the set three times -- and dropped serve each time as both players produced sloppy play with little rhythm. Azarenka, the Australian Open champion, managed to hold her serve only once through the first eight games but seized her chance when it came. She won four straight points in the tiebreaker to take a 5-3 lead, then faltered when she served her sixth double-fault. But an error by Errani gave Azarenka two set points. Errani then committed a double-fault and Azarenka had the set. "I think, overall was important to take that first set. It was a big turnaround point," Azarenka said. Azerenka, who was runner-up in the event in 2011 and a semifinalist last year, finished with eight double-faults but she also had 51 winners for Erranis 28. Azarenkas win was her first since losing the U.S. Open final to Serena Williams. Azarenka lost both of her opening matches in Tokyo and Beijing, where she had 15 double-faults. The tournament brings together the top eight players in the world. Third-ranked Maria Sharapova dropped out with a shoulder injury. The players are split onto two round-robin groups, with the top two finishers from each pool advancing to the semifinals. New York Giants Jerseys China .com) - The Winnipeg Jets placed defenceman Paul Postma on injured reserve Tuesday. Stitched New York Giants Jerseys . Patton told The Baltimore Sun that he took an Adderall pill four days before the season finished, trying to improve his short-term focus. "I took one because I was stupid," Patton told The Sun. http://www.cheapgiants.com/61b-cheap-cus...sey-giants.html. The star receiver certainly isnt celebrating it with the Texans mired in a franchise-record 13-game skid. Cheap New York Giants Jerseys Online . -- D.A. Points was disqualified Friday from the AT&T Pebble Beach National Pro-Am for using a training device while waiting to play the 18th hole at Pebble Beach. New York Giants Jerseys Outlet . Dr. James Andrews is to operate next week on the 24-year-old pitcher, who made the AL All-Star team last year. Moore will be the first Rays pitcher to undergo Tommy John surgery since Jason Isringhausen in June 2009.HOUSTON -- After hitting just .136 last April, the Washington Nationals are certainly enjoying the way Adam LaRoche has started this season. LaRoche continued his hot start Tuesday night, hitting a tying double in the eighth inning and a go-ahead single in the ninth to lift the Nationals over the Houston Astros 4-3. "Its good for him because hes not traditionally a fast starter," manager Matt Williams said. "He really focused on it in spring training and really focused on driving one in. Hes going to hit homers with guys on base but that ones big for us as evidenced tonight. If he can do that the homers will come ... but when he can consistently drive runs in like that were a better team." Jayson Werth homered as the Nationals won the opener of the interleague series. Denard Span drew a leadoff walk in the ninth, stole second and advanced to third on a groundout. He scored on LaRoches hit to right field off Josh Fields (0-3). "When Im feeling pretty good, one, Im taking some walks and two, Im using the whole field," LaRoche said. LaRoche is hitting .312 with four home runs, 17 RBIs and 16 walks in 2014. Tyler Clippard (2-2) pitched a scoreless eighth for the win. Rafael Soriano walked two in a scoreless ninth for his fifth save. Werth hit fourth home run in the first inning. Houston scored three times in the third for a 3-2 lead, helped by rookie George Springers two-run single. Houston manager Bo Porter was troubled that his team let another one get away late. "Its very concerning, because our starting pitcher did a very good job," he said. "You feel like you are in position to win the game, you have the right guys matched up, and you just dont get it done." Werth singled to start the eighth and scored on LaRoches double to left-centre field. Center fielder Dexter Fowler tracked the ball to the wall, but it glanced off his glove as he crashed to the ground. The Nationals went on to load the bases before Chad Qualls struck out Jose Lobaton.dddddddddddd Washington starter Gio Gonzalez allowed five hits and three runs, striking out a season-high nine in six innings. Houstons Jarred Cosart gave up five hits, two runs and struck out six in six innings in his first career start against an NL team. Cosart hit Kevin Frandsen with a pitch to start the third inning and he scored on a double by Lobaton to make it 2-0. Houstons first hit was a double by Matt Dominguez to open the third and he moved up on a sacrifice bunt by Jonathan Villar. Fowlers two-out single cut Washingtons lead to 2-1 and extended his hitting streak to nine games. Jason Castro reached on a double when the ball bounced off the padding on the wall in left field -- Frandsen saved a run when he made a nifty no-look, backhanded stop on the carom. He said he simply got lucky on the play and shared what he told his teammates when they asked how he did it. "You stick your glove out and maybe some things go in there," he said with a laugh. Springers single on a line drive to left field put Houston ahead. The Nationals had another good defensive play when Span ran up Tals Hill in centre field and landed on his backside as he caught a fly ball hit by Dominguez for the second out of the fourth inning. NOTES: These teams wrap up the two-game series on Wednesday when Houston LHP Brett Oberholtzer opposes RHP Jordan Zimmermann. ... Washington OF Bryce Harper had surgery on his injured left thumb on Tuesday and will be out for an extended period of time. Harper was injured on Friday night against San Diego on a headfirst slide into third base on a triple. ... Houston RHP Scott Feldman, on the 15-day DL retroactive to April 18 with right biceps tendinitis, said he felt good after throwing 35 pitches in a bullpen session on Tuesday. He is eligible to come off the DL on May 3. 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