WASHINGTON -- Mets pitcher Zack Wheeler was working in and out of trouble in the early going against the Washington Nationals, walking four batters and allowing a run on a wild pitch. So he asked catcher Travis dArnaud and pitching coach Dan Warthen a simple question: "Do you all see anything?" Warthen went into the clubhouse to check some video from Tuesday nights game and noticed Wheeler was "collapsing" instead of "throwing downhill," as the right-hander put it. Thanks to that mid-game adjustment to his delivery -- and Washingtons own miscues, including one runner hit by a batted ball and another thrown out at the plate -- Wheeler pitched 6 2-3 innings to win his fourth consecutive decision, helping the Mets beat the NL East-leading Nationals 6-1. "I didnt have my best stuff. And it wasnt very fun. But youve got to find a way through it," said Wheeler (7-8), who contributed a broken-bat RBI single at the plate. "Youre mad at yourself, and youre trying to figure out what it is. I wouldnt say its mentally draining, but its just frustrating." Relying on a fastball consistently in the high 90s mph because his curveball wasnt working, Wheeler was good enough on a muggy night when the temperature was 85 degrees at first pitch. The righty went 3-8 with a 4.45 ERA in his first 16 starts, but is 4-0 with a 1.59 ERA in seven appearances since June 30. "This kid has really, really gotten better," Mets manager Terry Collins said. "I mean, as he continues to improve, the skys the limit." Said Washingtons Jayson Werth: "That was the best Ive seen him. I dont know how many times Ive seen him, but his velocity was a lot higher than I remember." Werth led off the sixth with a double. When Adam LaRoche followed with a single to left, third base coach Bob Henley sent Werth home. Left fielder Eric Campbell threw out Werth with a one-hop toss; the call stood after a replay review to check whether dArnaud blocked the plate. "It changed the whole game right there," said Daniel Murphy, who pushed New Yorks lead to 4-1 with a two-run single in the seventh off Drew Storen. Nationals lefty Gio Gonzalez (6-8) was charged with four runs and six hits over six-plus innings. He put two runners on to begin the seventh, then shook his head as he walked off the mound when manager Matt Williams yanked him with Wheeler coming to the plate. Asked if he was upset that he was removed there, Gonzalez replied: "I wanted to face the pitcher, yes." TRAINERS ROOM: Mets: Closer Jenrry Mejia "tweaked his back" in Mondays loss against San Francisco, Collins said, calling the relievers status day to day. Right-hander Matt Harvey, recovering from reconstructive elbow surgery, threw off a mound for the first time since the operation, and Collins said the pitcher felt fine after Tuesdays session in Florida. Nationals: Third baseman Ryan Zimmerman, on the DL since injuring his right hamstring July 22, has a grade-three strain and could miss six weeks, general manager Mike Rizzo said. Williams thinks Zimmerman -- who began walking on a water treadmill Monday -- could return during the regular season. UP NEXT: Mets: Wednesdays starter, left-hander Jonathan Niese (5-7, 3.24 ERA), lasted only four innings in his last appearance at Nationals Park, allowing five runs in a 5-2 Mets loss May 16. Nationals: The Nationals start righty Doug Fister (10-3, 2.68 ERA). Might second baseman Danny Espinosa get back into the lineup after giving way to trade deadline pickup Cabrera? Espinosa is 5 for 12 (a .417 average) against Niese. WHAT A CATCH: Mets centre fielder Juan Lagares ended the seventh with a head-first diving catch of a sinking liner by Denard Span. Lagares got the wind knocked out of him on the play and was checked on in the outfield by Collins and a trainer but stayed in the game. 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Three days after falling to Hamilton, Abbotsford scored three goals in 53 seconds en route to a convincing 5-1 win over the Bulldogs Saturday in American Hockey League play. Cheap Adidas Hurricanes Jerseys . The same for both the Calgary Flames and the Edmonton Oilers.NEW YORK -- A person familiar with the deal says the New York Yankees have signed free-swinging corner infielder Mark Reynolds. Reynolds was released by the Cleveland Indians last week after a monthslong slump. The person spoke on condition of anonymity Thursday night because the deal has not been announced. Reynolds will provide a right-handed bat to back up lefty swinging Lyle Overbay att first base and could spell Alex Rodriguez at third.dddddddddddd. Reynolds batted .301 with eight homers in April, but just .187 since. He went .098 (5 for 51) with one RBI in July. Overall, Reynolds is hitting .215 with 15 homers and 48 RBIs, and he has struck out 123 times. Hes only hit two homers since May and none since June 28. CBSSports.com first reported the deal. ' ' '