BOSTON -- Putting together a five-game winning streak and getting 10 games above .500 were once common achievements for the Dallas Mavericks. Now, both are season highs as Dallas slowly works its way back into playoff contention in the Western Conference. Dirk Nowitzki scored 20 points, Shawn Marion finished with 11 points and 10 rebounds, and the Mavericks beat the Boston Celtics 102-91 Sunday night to extend their winning streak to five straight. "There are encouraging signs, but theres no way we can exhale or start feeling good," coach Rick Carlisle said. Jose Calderon added 18 points and Monta Ellis played through a sore hamstring and scored 11 for Dallas, which won for the sixth time in seven games and pulled 10 games above .500 for the first time this season at 31-21. "Were looking to move up," Nowitzki said. "If you look at the standings, (places) five through eight is only separated by a couple of games. Wed love to keep pushing." Vince Carter scored 14, Devin Harris had 12 points and Samuel Dalembert grabbed 11 rebounds for Dallas. The Mavericks led by six at halftime and pulled away in the third quarter by outscoring the Celtics 28-18. "The third quarter and the start of the fourth killed us and took us out of the game," Boston coach Brad Stevens said. Rajon Rondo had 15 points, 12 assists and eight rebounds for Boston, which had won three straight games. Jeff Green scored 18 and Jared Sullinger had 11 points and 12 rebounds for the Celtics. Boston managed to stay close through the first half despite shooting 27 per cent, then Dallas took command early in the third quarter and pulled ahead by as many as 24 points before the Celtics rallied when it was too late. "We still kept it close. That was the beauty of it," Sullinger said. "We played hard, but they just got away and the deficit was so big we couldnt dig ourselves out of that hole." The Mavericks opened the second half on a 16-5 run, holding the Celtics to two field goals through the first 6:29 of the third quarter. A 3-pointer by Green got Boston within 53-43, but Calderon answered from beyond the arc and Marion and Dalembert followed with layups to extend the Mavericks lead to 60-43. "In the third quarter, we were doing the same kind of defence, but now we were sharing the ball and making open shots and thats what the difference was," Calderon said. Bostons only scoring run in the period was a 4-0 spurt late on layups by Kris Humphries and Kelly Olynyk, which Dallas negated in the last minute on two foul shots by Harris and an alley-oop from Harris to Brandan Wright with 5 seconds remaining to give the Mavericks a 72-56 lead entering the fourth. Wright opened the fourth with another alley-oop from Carter, who added a layup for Dallas eighth point in a row and the Mavericks lead was up to 76-56. The Celtics put together a late run to make it close down the stretch before running out of time. Rondo and Green hit back-to-back 3-pointers to pull Boston within 96-84 with 2:25 remaining. Johnson added another 3-pointer with 1:18 to get the Celtics within 98-89, but Calderon hit a layup to put the Mavericks back up by double-digits. NOTES: Olynyk finished with 14 points and Humphries scored 10 for Boston. ... Marion got his seventh double-double of the season. ... The Mavericks had one other four-game winning streak this season, but had reached five beating Utah on Friday and Boston on Sunday. ... Rondo was the only Boston starter to make more than two field goals in the first half with four. ... Nowitzki scored 15 in the first half. ... The Celtics shot 27 per cent (13 for 48) in the first half and opened the third quarter 2 for 10. Carlos Salcedo Jersey . -- Jacksonville Jaguars rookie receiver Marqise Lee has agreed to terms on a four-year contract worth more than $5 million. 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Patrice Bergeron and Daniel Paille scored 20 seconds apart a few minutes after Stamkos was taken off the ice on a stretcher with a broken right leg, and the Bruins beat the Lightning 3-0 on Monday afternoon. PITTSBURGH -- Travis Snider is no longer a regular in the Pittsburgh Pirates lineup. The arrival of Gregory Polanco in June means right field is no longer an option for Snider -- or anybody else -- for the next six years. Relegated to part-time status, Snider isnt sulking. Hes thriving. Sniders major league-leading 11th pinch hit of the season, a sinking liner off Matt Belisle, in the eighth scored Neil Walker and sparked the Pirates to a 4-2 victory over the Colorado Rockies on Friday night. "When you dont see (reserves) on the bench, were not hanging out eating sunflower seeds, were actually doing something," Snider said. "We really just try to feed off each other in that sense and have a routine you can stick with it." Coming through is becoming routine for Snider, who is 11 for 39 (.282) as a pinch hitter. "One of the things we continue to talk about with all the pinch hitters is ... theres no downside," Pittsburgh manager Clint Hurdle said. "Youre trying to perform one of the toughest acts in the game and hes gotten to a good place with it." All-Star reliever Tony Watson (6-1) picked up the win with a scoreless eighth inning. Mark Melancon got Troy Tulowitzki, representing the tying run, to ground out to third to end it for his 17th save. Starling Marte tripled and drove in two runs before leaving late in the game shortly after taking a fastball to the head. Hurdle called the decision to remove Marte "precautionary" and he will be re-evaluated on Saturday. Charlie Culberson and Corey Dickerson had two hits apiece for the Rockies but Colorados bullpen couldnt give starter Jorge De La Rosa his fifth consecutive victory. The Rockies left 11 runners on base while losing their third straight. "We couldnt put it away," manager Walt Weiss said. "We got a few big outs there but the final analysis is we werent able to put that game away." Walker singled to lead off the bottom of the eighth and moved to third on Gaby Sanchezs single to centre. Snider followed with a hard drive that Gonzalez couldnt track down, the low point on a night the slugger also struck out five times. Pittsburgh starter Francisco Liriano worked five innings as he tries to bouncee back from a difficult first half in which he managed just one win in 15 starts and spent a month on the disabled list with a back injury.dddddddddddd The left-hander returned in four shaky innings last weekend against Cincinnati, but Hurdle threw Liriano right back out there on Friday hoping to get him into a comfortable rhythm. The early signs were encouraging. Liriano laboured through the first two innings -- needing 27 pitches to get out of bases-loaded jam in the first -- but got better as the game wore on. Colorado managed only an RBI fielders choice by Dickerson in the second against him as he retired 11 of the last 12 batters he faced. Liriano allowed one run on three hits, walking three and striking out eight. "When I started hitting my spot with my fastball in, things started to get better," Liriano said. De La Rosa was just as effective while keeping the Pirates off balance for six innings. Poor decision making by Marte helped. The left fielder tripled to left with two outs in the fifth, scoring Polanco all the way from first. Marte then ran through third baseman Nick Leyvas stop sign and was out by a good 15 feet trying for an inside the park homer. Colorado went back in front in the seventh when Pedro Alvarezs throwing error with two outs snowballed into an RBI single by Drew Stubbs. Pittsburgh evened it in the seventh after loading the bases off Rex Brothers. Adam Ottavino came in and got ahead of Marte 0-2 before hitting the outfielder in the helmet with a 93 mph fastball. "It was a bad pitch, I wish it didnt happen," Ottavino said. "It got away from me." NOTES: Pittsburgh RHP Gerrit Cole threw 30 pitches on Thursday without incident as he recovers from a sore back. Cole was eligible to come off the disabled list on Friday but the team remains uncertain on when he will return. ... Colorado RHP Tyler Chatwood will have undergo reconstructive elbow surgery for the second time in his career. Chatwood hasnt pitched since going on the 60-day disabled list on April 30. The 24-year-old is 20-22 with a 4.34 ERA in 70 major league games. He is expected to miss 12-18 months. ... The series continues on Saturday when Pittsburghs Charlie Morton (5-9, 3.32 ERA) faces Colorados Brett Anderson (0-3, 4.95). ' ' '