Andy Murray won nine of 10 games to start and overwhelmed Grigor Dimitrov 6-1, 6-2, 6-2 at the US Open on Monday night. The No. 2 seed, Murray reached the quarterfinals for the 22nd time in his past 23 Grand Slam tournaments.During the changeover right before the last game, it suddenly began to rain, and play was delayed only slightly before the shower passed. The new retractable roof at Arthur Ashe Stadium was not closed.I played extremely well. Tactically, played a good match, Murray said. And I served very well when I was behind in the games. Got a lot of free points with my serve, and that was important.He was credited with one serve at 141 mph, which he said would be the first of his career that topped 140.I served one at 145 in San Jose, but the next day, Murray said with a smile, they recalibrated the gun because it was completely wrong.The 2012 champion at Flushing Meadows will face No. 6 seed Kei Nishikori in the quarterfinals Wednesday. Nishikori earned a straight-sets victory over No. 21 seed Ivo Karlovic.Nishikori, the 2014 runner-up, won 6-3, 6-4, 7-6 (4) on Monday in the last singles match at the current Louis Armstrong Stadium, which will be torn down after the tournament. A new venue to be built to replace it.Karlovic, 37, was the oldest man to reach a Grand Slam round of 16 since Jimmy Connors at the 1991 U.S. Open. At 6-foot-11, Karlovic set a tournament record with 61 aces in a five-set win in the first round.Unlike Murray and Nishikori, two-time major champion Stan Wawrinka had a tougher road to the quarterfinals.Wawrinka blew a lead and smashed a racket, but he eventually pulled out a four-set victory to reach a fourth straight US Open quarterfinal.After saving a match point in a five-set win in his last outing, Wawrinka was cruising against 63rd-ranked Illya Marchenko, who was playing in his first Grand Slam round of 16. Serving for the match in the third set, the third-seeded Wawrinka was broken and then lost a tiebreaker.After going down a break early in the fourth set, Wawrinka took his frustrations out on his racket. He proceeded to win the next four games to regain control on the way to a 6-4, 6-1, 6-7 (5), 6-3 victory Monday.Marchenko had dropped the first set of his third-round match against 14th-seeded Nick Kyrgios but won the next two as the Australian struggled with a hip injury that eventually forced him to retire.Wawrinka next faces 2009 US Open champ Juan Martin del Potro, who beat Wawrinka at Wimbledon this year.Del Potro is back in the quarterfinals after Dominic Thiem retired in the second set of their match.The eighth-seeded Thiem took a medical timeout to have trainers look at his right knee after the sets fifth game. He returned to the court for one point before deciding he couldnt go on.Thiem said his knee started hurting three days earlier, and he speculated it was the indirect result of blisters on his feet -- he needed to alter his gait to compensate. Late in the first set Monday, it started getting worse. He didnt want to take any risks with a knee injury and planned to get an MRI.I couldnt bend it too much the last three days, he said. So I was all the time a little bit handicapped.Del Potro had won the first set 6-3 and was up a break in the second.Thiem, who turned 23 on Saturday, has had a breakthrough year, reaching the French Open semifinals and cracking the top 10. But the long season was starting to wear on his body.Del Potro knows all about that. He missed the tournament the past two years after surgeries on his left wrist. But his stunning run to the Olympic silver medal signaled that he is a contender again.Del Potro got a huge break Monday when he spent only 72 minutes on court. He has played just 10-plus sets through four rounds, but still expects to be the underdog.[Wawrinka] will be the favorite to win in that match, del Potro insisted, before adding: But anything can happen in this event for me. I got the power from the crowd in every match.At No. 142, del Potro is the lowest-ranked US Open quarterfinalist since Jimmy Connors in 1991.Information from The Associated Press was used in this report. Nike Just Do It Schoenen Zwart . Each of Houstons starters scored in double figures as the Rockets improved to 2-0 against the Spurs this season, with both victories coming on the road. They also moved within 3 1/2 games of San Antonio (22-7) for the lead the Southwest Division. Nike Epic React Flyknit 2 Kopen .ca looks back at the stories and moments that made the year memorable. http://www.vapormaxsalenederland.com/nike-react-element-87-goedkoop-kopen.html .ca. 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HOUSTON -- Dallas Keuchel looked like the reigning AL Cy Young Award winner, and the Houston hitters woke up to support him.Keuchel pitched a three-hitter and the Astros beat Texas for just the second time in 11 tries this season, topping the Rangers 5-0 Friday night.Jose Altuve had two hits and drove in two runs as the Astros closed within 5 1/2 games of the AL West-leading Rangers. Houston had lost three in a row overall.I dont know if its ever easy against these guys, but it was clearly his best game, Houston manager A.J. Hinch said about Keuchel. He made his pitches in the strike zone or close enough for them to have to deal with them. Just a really gutsy performance at a time when we needed it.Keuchel (7-11) allowed a career low in hits while throwing his fourth major league shutout. He struck out seven and walked two.First start in August, it is getting down to the final two months, Keuchel said.This is the first start I knew going in that it was going to be good because the way my body felt, the way it was recovering in between workouts. You get a feeling that the body is turning around right in the nick of time for August and September.Keuchel was coming off one of his worst starts of the season in which he was tagged for seven runs in five innings Sunday at Detroit.Houston got to Martin Perez (7-8) for four runs in the third. Altuve hit an RBI double, Carlos Correa followed with a two-run single before Tyler White had an RBI single.Thats the way we play, Correa said. When we are at our best, we are able to turn the game around in one inning. We were able to do that tonight. It was great, and we got the win.Keuchel got off to a shaky start, giving up a double, single and walk in the first inning, along with throwing a wild pitch.I made some pitches and settled down, but I knew from the get-go that if I was able to get a groundbball with two outs, I would be in good shape, Keuchel said.ddddddddddddfter that, he permitted just two more runners before Adrian Beltre doubled in the ninth.We saw the same guy that won the Cy Young last year, Beltre said. He relies on throwing the ball on the corners. Make you chase, keeping the ball down and thats what he tried to do.Evan Gattis had three hits for Houston, which scored as many runs as it had totaled in the previous five games.Perez lost his fourth straight decision. He hasnt won since June 26 against Boston.I just think I need to control the ball, Perez said. Sometimes Im trying to throw perfect pitches. Trying to look for the pitch for double plays and when a pitcher tries to throw perfect pitches you dont have a chance. Just need to control the ball and see what happens.TRAINERS ROOMRangers: LHP Derek Holland (left shoulder inflammation) started a rehab assignment with Triple-A Round Rock. He threw two scoreless innings, with one hit, one walk and two strikeouts on 28 pitches. ... CF Drew Stubbs (toe) continued a rehab assignment Friday with Round Rock. Stubbs entered Friday 7 for 32 in 11 rehab games.UP NEXTRangers: RHP Lucas Harrell (3-2) will make his second start with Texas after coming over from Atlanta in a trade July 27. He allowed three runs in six innings against Kansas City in his first start with Texas on Sunday.Astros: RHP Doug Fister (10-7) will make his 22nd start of the season. He will look to continue the success he had in his last outing Monday when he threw six scoreless innings.ROSTER MOVEFister will come off the three-day paternity list Saturday in order to make the start. The Astros optioned RHP Brad Peacock to Triple-A Fresno to make room on the roster for Fister.