WASHINGTON -- Nationals centre fielder Denard Span left in the third inning after making a diving, tumbling catch, and NL East champion Washington went on to a 4-2 victory over the New York Mets on Tuesday night. The win boosted the Nationals push for home-field advantage during the National League playoffs. They began the day three games ahead of the Los Angeles Dodgers for the leagues best record with less than a week left in the regular season. Span is a key player for the Nationals. A strong defensive presence and their leadoff hitter, he entered with the clubs highest batting average at .298 and most stolen bases with 31. The player who replaced him, rookie Michael Taylor, doubled home Washingtons first run in the fifth. Taylor wound up scoring moments later on Adam LaRoches 26th homer, a three-run shot into the home bullpen beyond right field off Bartolo Colon (14-13) that made it 4-1. Colon gave up four runs and five hits in six innings. Tanner Roark (15-10) allowed two runs in 6 1-3 innings to win his third consecutive start. Drew Storen pitched a scoreless ninth, making him 9 for 9 in save chances since taking over the primary closers role from struggling Rafael Soriano on Sept. 7. As good as Roark has been in his first full season as a major league starter, he appears destined to be in the bullpen for the post-season, because Washington is expected to go with a four-man rotation of Stephen Strasburg, Doug Fister, Jordan Zimmermann and Gio Gonzalez. Coming off a 9-2 road trip, this was Washingtons first game at Nationals Park since Sept. 10 -- and the first chance for the home fans to salute the players since they clinched their second NL East championship in three years last Tuesday in Atlanta, Roarks previous outing. Roark was given a standing ovation as he headed from the bullpen to the dugout before Tuesdays game began, and again when he exited with two on in the seventh. When Washingtons players ran out to their positions for the top of the first, the crowd roared during another standing ovation, as the stadium announcer noted the division title. The fans rose to applaud yet again after Span made his terrific grab on the warning track of a liner off the bat of Matt den Dekker for the last out in the top of the third. Span received kudos from outfielders Bryce Harper and Jayson Werth, and a high-five from Roark, who waited for him on the grass between the infield and the dugout. Span, who has a history of concussion problems, walked slowly to the dugout, then headed toward the clubhouse with a team trainer. The Nationals did not immediately announce whether Span was injured. TRAINERS ROOM Nationals: Ryan Zimmerman was out of the lineup because his right hamstring felt sore; he pinch-hit in the seventh and popped out. Mets: Rookie RHP Jacob deGrom was shut down to make sure he ends the season healthy. ... Manager Terry Collins said CF Juan Lagares will not need surgery for a hyperextended right elbow. ... Collins said RHP Vic Black (rotator cuff strain) will avoid shoulder surgery but wont return this season, and 2B Dilson Herrera (right quadriceps strain) is doubtful to play again this year. UP NEXT Nationals LHP Gio Gonzalez (9-10, 3.74 ERA) faces Mets RHP Dillon Gee (7-8, 3.88) on Wednesday. METS MOVES The team announced a contract extension for GM Sandy Alderson that runs through 2017, and Alderson confirmed that Collins will be back next year. ... New York recalled INF Wilfredo Tovar from Double-A Binghamton. Will Harris Lions Jersey . -- Maxence Parrot of Bromont, Que. Jarrad Davis Womens Jersey . Price was hurt at the start of Wednesdays practice after facing just one shot as the team worked on their power play. He left the ice in discomfort and appeared to be favouring his leg. 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Watt pushed him around in a 1-on-1 pass-rushing drill and kept right on motoring toward the imaginary quarterback. Clark finally broke free with a swipe at the Houston Texans star that sent the pass rushers helmet bouncing on the ground. "Dont get mad when you get beat," Watt hollered at Clark. That turned into the theme of Wednesdays joint workout in full pads, one which ended with a lot of jawing and posturing after Texans safety D.J. Swearinger loudly celebrated his interception of Peyton Manning in an 11-on-11 drill. "I picked off Peyton today and I guess that got them a little chippy," Swearinger said. "The offence did great, ran the ball down their throat, so, hey, I would get mad, too. Thats all it is: players making plays and people getting mad." Broncos cornerback Chris Harris said its one thing to pick off Manning and quite another to go all gaga over it. "His swag just went to another level," Harris said. So did the Broncos indignation. "Theres about 200 guys out here," Broncos cornerback Aqib Talib said. "Its hard to avoid." No punches were thrown, however, as is so often is the case in these types of get-togethers. After all, players realize its a little too close to final cuts and the start of the season to risk fighting at practice. "We wanted to stay clean out here," Swearinger said. "Were not out here to start nothing with nobody, were out here to get good work. Both teams got good work. It got a little chippy at the end, but its all football. Its part of the game." Broncos safety Rahim Moore said the chippy moments were actually a good sign. "Theyre no punks and neither are we," Moore said. "So at the end of the day you do all your talking with the pads. Today they had a great day, we had a great day. So I actually like it because theyve got a bunch of competitive guys that we would love to go against each other every day. Its a great way for us to see how we match up, so we love it. Its fun." It wasnt all frayed nerves and trash talking, either. Top draft pick Jadeveon Clowney and star left tackle Ryan Clady battled to a draw several times during the 1-on-1 pass-rushing drills that proved the highlight of the two-hour practice. Cllowney sought out Clady afterward and the two exchanged a fist bump in a show of sportsmanship.dddddddddddd. Clowney later smacked into tight end Jacob Tamme during a 9-on-7 drill and retreated to the Texans medical tent, where he sat out the final 45 minutes of practice. He didnt appear to be getting any sort of treatment, however, and appeared to walk off OK after practice ended. Asked what had happened to Clowney, Texans coach Bill OBrien said, "I dont know. I was in the middle of practice, so Ill find out." The team didnt issue any update, however. The Clowney-Clady matchup was one of the many benefits of the four hours of joint practices so far this week that both head coaches insist far outweigh the inevitable emotions that come with them. "You cant really simulate this when you go against each other," OBrien said. "The competition level rises, you see different schemes. You hear different communication on both sides of the ball. The coaches work together. Were able to talk to Denvers coaches and vice versa about some of the things theyre doing, what theyre looking for, what were looking for. I thought both teams worked very well together." Despite the pick at the end, Manning and the Broncos offence played much better than they had 24 hours earlier when Manning called out his teammates over a sloppy practice. "Im sure a lot of our guys noticed that he wasnt happy on the field," offensive co-ordinator Adam Gase said. "I spoke my mind in the meetings. Im not really going to do it out here for everybody to watch, but I said my piece. We made sure that we came out here and had a better day." The teams have one more joint practice Thursday, this time in shells and shorts, which should further reduce any extracurricular activity, before their preseason game Saturday night. Notes: Broncos WR-PR Jordan Norwood tore his left ACL when he landed awkwardly while going up for a touchdown catch and battling with Texans CB Brandon Harris in a red zone drill. ... Broncos RB Montee Ball participated in his second straight day of workouts following his Aug. 4 appendectomy. Ball said hes lost 6 pounds but likes the way he feels at 209: "I feel a lot faster, a lot more agile," he said. ... Broncos LB Jamar Chaney (hamstring) sat out and TE Jameson Konz left practice after hurting his neck. ' ' '