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MELBOURNE, Australia - The injuries mounted at the Australian Open on Tuesday, although for the most part, players coped with the oppressive heat. No. 13-seeded John Isner and No. 21 Philipp Kohlschreiber were among six players who dropped out of the tournament on Tuesday, joining No. 12 seed Tommy Haas and two other players who withdrew on Monday. Despite temperatures reaching 42 Celsius (108 Fahrenheit) during the afternoon and a hot breeze gusting over Melbourne Park for most of the day, none of the withdrawals were apparently linked to the temperatures. Isner retired from his match against Slovakias Martin Klizan with a lingering ankle injury that he said got progressively worse at the Hopman Cup event in Perth and a tournament he won in Auckland, New Zealand, over the past two weeks. "I know movement is not the best part of my game," the 2.08-meter (6-foot-10) American said, "but at a certain point Ive got to be able to move without pain and I wasnt able to do that today." He withdrew before last years Australian Open with an injury, as well. "I thought I had a good shot at playing this match and winning this match and I pulled out," he said. "I could have done the same last year, but I went home." The other seeded player in his section of the draw, Philipp Kohlschreiber of Germany, withdrew before his scheduled first-round match against Slovenian Aljaz Bedene with a left hamstring injury. He was replaced in the draw by Frenchman Stephane Robert, a lucky loser from qualifying, who defeated Bedene to reach the second round. Hometown favourite Bernard Tomic later retired with a left leg injury after losing the first set against top-seeded Rafael Nadal 6-4, much to the astonishment of the Rod Laver Arena crowd, who initially booed him. "It was very difficult for me to say sorry to the crowd," he said. "I dont think they quite knew what was wrong with me." Tomic suffered the injury in training on Monday. Czech veteran Radek Stepanek also retired from his match against Slovenian Blaz Kavcic with a neck injury while leading 7-6 (3), 6-4, 1-6, 0-2 after nearly three hours of play. A few other players struggled in the heat on Tuesday, but finished their matches. Canadian qualifier Frank Dancevic said he blacked out during his 7-6 (12), 6-3, 6-4 loss to No. 27-seeded Benoit Paire of France. Dancevic, who required medical attention during the second set, questioned the wisdom of not suspending matches during the torridly hot conditions. "I dont think its fair to anybody, to the players, to the fans, to the sport when you see players pulling out of matches and passing out," he said. "I think its definitely hazardous to be out there. Its dangerous." Cheap Panthers Jerseys Authentic . -- Canadian mens rugby coach Kieran Crowley has made four changes to his starting roster for Saturdays Pacific Nations Cup clash against the United States. Cheap Panthers Jerseys China . Its other five picks were all six foot or better, with three at 6-1 or above. Third-round pick Brett Lernout stands six foot four and weighs 206 pounds. http://www.cheapfloridapanthersjerseys.com/ .5 million, four-year contract with the Texas Rangers that could be worth $32. Cheap Adidas Panthers Jerseys .7 million, one-year contract, a raise of $2.2 million. Wieters had asked for $8.75 million and the Orioles had offered $6. Cheap Adidas NHL Jerseys . The Nevada Athletic Commission voted unanimously in Las Vegas to quit granting therapeutic use exemptions for fighters undergoing the so-called TRT.Despite having a starting rotation riddled with injuries, the Atlanta Braves have still managed to ride their stellar starting pitching to top spot in the TSN.ca MLB Power Rankings, ahead of the Milwaukee Brewers and Oakland Athletics. Early-season surprises can shift the rankings dramatically, but the Braves have been getting lights-out stuff from Aaron Harang, Ervin Santana, Alex Wood and Julio Teheran. The Brewers, ranked at 12 in the preseason, are up to two, with their own impressive pitching, including closer Francisco Rodriguez, who is striking people out, despite decreased velocity. Like the Braves, the Oakland As have injuries to deal with in their starting rotation, but they have also received four strong starts from 30-year-old journeyman Jesse Chavez. If Chavez is for real, he could be one of the great stories of this season. Moving from 22 in the preseason to four, the Colorado Rockies have been raking like nothing else at home. As a team, they have a .985 OPS at Coors Field, compared to just .662 on the road, but they also have the second-best run differential in the National League. The Toronto Blue Jays are one of the pleasant surprises, following a disastrous 20113 season, and decent pitching has lifted them from 25 in the preseason to 12.dddddddddddd Coming into the year, the rankings were not optimistic for the New York Yankees, pegging the pinstripers at 16, but early returns from starting pitchers Michael Pineda and Masahiro Tanaka have given the Yankees hope, despite a lineup full of holes. The Yankees rivals, the Boston Red Sox, have stumbled out of the gate and, as a result, are at 21, after opening the season in second spot. Hopes were higher for the Cleveland Indians too, ranked 11 coming into the season, but they sit at 23, with some of their highly-touted young players struggling. Following last years breakout season, the Pittsburgh Pirates came into the year ranked fifth, but quiet bats leave them at 24 with this update. Finally, no team can compare to the Arizona Diamondbacks for disappointment. They werent necessarily going to be great, ranked 19th coming into the season, but they are on pace for 35 wins. They even found a way to get ranked below the Houston Astros! Scott Cullen can be reached at Scott.Cullen@bellmedia.ca and followed on Twitter at http://twitter.com/tsnscottcullen. For more, check out TSN Fantasy on Facebook. ' ' '