WASHINGTON -- Bryce Harper and Adam LaRoche each drove in two runs, leading the Washington Nationals over the Pittsburgh Pirates 5-4 Friday night for their fourth straight win. Nathan Shepherd Jersey . Denard Span added three hits as the NL-East leading Nationals opened a 10-game homestand. Tanner Roark (12-7) gave up three runs on five hits over 5 2-3 innings. He struck out four and walked two. Rafael Soriano allowed three hits in the ninth, including Pedro Alvarezs RBI single, but held on for his 29th save. Starling Marte hit a two-run homer and singled for the Pirates, who have lost three straight. Charlie Morton (5-12) lasted just three innings in his shortest start of the season, allowing five runs on seven hits and three walks. The first five Nationals hitters of the game reached base. Morton caught a break when Span was thrown out trying to steal third, but LaRoches single made it 1-0. With bases loaded, Harper fouled a 2-2 pitch off his right foot and needed a several moments to recover. He stepped in and eventually lined a 3-2 pitch to right-centre field for a two-run single, making it 3-0. Harper finished with two hits. Off to a slower-than-usual start this year, he homered twice this week during a three-game sweep of the Mets in New York. LaRoche and Wilson Ramos singled home runs in the third to make it 5-0. The Pirates got to Roark in the fourth. Neil Walker doubled and Marte connected for his sixth homer. Alvarez then doubled home a run with two outs to pull Pittsburgh within 5-3. TRAINERS ROOM Pirates: RHP Stolmy Pimentel (right ankle sprain) was placed on the 15-day disabled list. ... SS Jordy Mercer, who left Thursdays game with right forearm tightness, wasnt in the lineup. Mercer, who had started 49 straight games, grounded out as a pinch-hitter. ... Walker, who had missed 11 of the last 12 games with back tightness, started and went 1 for 4. Nationals: RF Jayson Werth (right shoulder) missed his fourth straight game. Manager Matt Williams said Werth was available to pinch-hit and could return to the lineup Saturday, or more likely Sunday. OF Nate McLouth (right shoulder inflammation) is going to get a second opinion on his ailing shoulder. "Its not responding as well as hed like it to respond," Williams said. UP NEXT Pirates: LHP Jeff Locke (4-3, 3.98) makes his second career start against the Nationals. He allowed three earned runs in five innings of a no-decision on May 4, 2013, at PNC Park. Nationals: LHP Gio Gonzalez (6-9, 4.00) is 2-0 with a 3.28 ERA in four career starts against the Pirates. His teams (Nationals 3-0, As 1-0) are undefeated in those games. Custom New York Jets Jerseys . -- Joe Thornton scored the tiebreaking goal with 5:39 left in regulation to help the San Jose Sharks overcome a two-goal deficit to beat the Pittsburgh Penguins 5-3 on Thursday night. Sam Darnold Jets Jersey . He was attracted by the punishing defence, the strong running game and a coaching staff he trusted. The 49ers announced Thursday that Manningham had signed a two-year deal to join the team he helped knock out in the NFC championship game two months ago in their latest offensive upgrade at wide receiver. http://www.authenticjetsfanatic.com/c-102-jets-trumaine-johnson-jersey.aspx . No such luck. Wiggins owned the end of Parkers impressive homecoming. The Kansas star scored 16 of his 22 points in the second half, outplaying Parker down the stretch and helping the fifth-ranked Jayhawks knock off No.ALAMEDA, Calif. -- One of the byproducts of quarterback Matt McGloins rise to the top of Oaklands depth chart last week was the production of rookie tight end Mychal Rivera. One of the teams four picks in the sixth round of this years draft, Rivera had gone mostly unnoticed through the Raiders first nine games before catching a season-high five passes, including a go-ahead 26-yard touchdown, in a 28-23 win over the Houston Texans. Rivera called it his moment of arrival in the NFL, though the 6-foot-3, 245-pound former Tennessee star is quick to acknowledge hes still in the infancy of his development. "You always want to make plays, thats what you come into the game to do," Rivera said Friday. "But you also have to realize those plays come in many ways. Those plays can come in a backside block, a touchdown pass. Those plays can also be just helping out the guy next to you and doing what you need to do. Thats what a real playmaker needs to do." Until last week, the Raiders hadnt gotten many plays at all out of their tight ends. A combination of things has played into it. Oaklands offensive line has been battered all season and has needed the extra blocking support from the tight ends. Oakland has also used three different starting quarterbacks this year. At his current pace, Rivera will finish with just 37 receptions -- fewer than half the total made in 2012 by then-Raiders tight end Brandon Myers. "I think Mychal Riveras done a nice job," Oakland coach Dennis Allen said. "He understands the passing game. Obviously, hes a rookie so he still makes mistake but every week Ive seen him continue to get better, so Im pleased with where hes at." Still, the drop-off in tight end production is a huge departure from what Oakland is used to getting from that position. Since 2006, tight ends have led the Raiders in receptions four times, including Myerrs who caught 79 passes last season before signing with the New York Giants as a free agent in the off-season. Terrelle Pryor Sr. Jets Jersey. When Myers left, it created a void Oakland tried to fill by drafting Rivera and signing veteran Jeron Mastrud. Mastrud has started seven games this season but has been used primarily as a blocker while Rivera has caught 23 of the 32 passes thrown his way this season. "I just want to build every week," said Rivera, who has two touchdowns receptions. "Last game I had five catches. Im going to try to get seven catches this game. You always want to build on what you did last week, and I know I can do better than what I did last week. And next week Im going to be saying the same thing." Rivera might be needed a little bit more this week. Oakland will be without leading wide receiver Denarius Moore, who sat out his third straight practice with a shoulder injury. That leaves the Raiders with just one receiver who has caught more than 10 passes -- Rod Streater, who has 35 receptions. Without a full complement of receivers, facing a Tennessee team that is 10th in pass defence could be more of a challenge for McGloin. Thats where the tight ends may come into play, as a safety outlet for McGloin if plays break down. "Really it all depends on the scheme, the play call, who were playing," Rivera said. "Just like with anything, if coach wants to be pass heavy (with) a lot of routes, wed be able to do that. Whatever the scheme is I go with and do the best that I can." Notes: Quarterback Terrelle Pryor (knee) remains limited and is questionable. ... Injured running back Darren McFadden, defensive end Jason Hunter and safety Tyvon Branch have all been declared out. ... WR Andre Holmes, who missed the first four games of the season serving an NFL suspension for PEDs, will start in Moores absence. 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