NEW YORK (AP) - Shaun Marcum has made good starts and bad ones. He's set a career high for strikeouts and come out of the bullpen in extra innings - twice.
Yet midway through June, he's still looking for his first win with the New York Mets.
David DeJesus hit a bases-loaded triple before hurting his right shoulder when he crashed into the outfield fence, and the Chicago Cubs beat Marcum and the New York Mets 6-3 on Friday night behind resurgent starter Edwin Jackson.
Marcum (0-8) was hit hard early but retired 12 straight during one stretch and pitched into the sixth. It was his first outing since throwing eight innings of splendid relief in a hard-luck loss to Miami on Saturday, when the Mets were beaten 2-1 in 20 innings.
``It's not tough on me, it's probably more tough on the guys in here,' Marcum said. ``I think I've said it a thousand times: I could care less about my personal wins. It's more about the team.'
Daniel Murphy hit two RBI singles and David Wright had three hits for the second consecutive game, but his baserunning blunder stopped a Mets rally in the seventh.
New York has lost nine of 11 since a five-game winning streak.
``Shaun is a professional. He knows you've got to go out and get the job done,' Mets manager Terry Collins said. ``He's very upset about the way he pitched tonight, but he has pitched very well. He just got off to a bad start. I'm sure he wishes he could take a couple pitches back.'
With prized prospect Zack Wheeler set to make his major league debut during next Tuesday's doubleheader in Atlanta, the Mets will go to a six-man rotation ``for maybe two turns,' Collins said. But they will definitely go back to five starters at some point, he said.
So is Marcum's job in jeopardy?
``I haven't thought about it. I don't think I've had but maybe two starts on five days' rest this year, so we'll see what happens,' he said.
Marcum has lost in relief to the Marlins in extra innings twice this season. He set a career best with 12 strikeouts during a no-decision May 26 against first-place Atlanta.
The right-hander signed a $4 million, one-year contract with the Mets last winter after spending the previous two seasons in Milwaukee. The deal gave him a chance to make another $4 million in performance and roster bonuses, but he began the season on the disabled list.
``When it comes down to the time to make the decision, I'm not sure salary's going to have anything to do with it,' Collins said. ``The five guys that you need to make sure we think are the best five to go out there.'
Nate Schierholtz homered and slumping Anthony Rizzo had three hits for the Cubs in the opener of a three-game series between big-market teams trying to rebuild.
Jackson (3-8) went six innings for his second consecutive win, allowing one run and five hits while striking out seven. Coming off a 14-inning victory Thursday at home over Cincinnati, the Cubs won their second in a row after dropping eight of 10.
Rizzo's bloop single started a four-run second. Dioner Navarro also singled and a walk to Luis Valbuena loaded the bases with none out.
After a visit from pitching coach Dan Warthen, Marcum gave up an RBI single to Darwin Barney before Jackson struck out. DeJesus then hit a drive beyond the reach of rookie center fielder Juan Lagares that banged off the right-center fence for a three-run triple, giving Chicago a 5-0 cushion.
One inning later, Lagares led off with a triple to nearly the same spot and DeJesus crashed hard into the wall while trying to make the catch. He extended his right arm but the ball ticked off the end of his glove, and DeJesus' prone right shoulder slammed into the padded wall.
His glove was knocked off his hand and DeJesus immediately went down, writhing in pain on the warning track as he reached for his shoulder.
``It was just like the pressure just didn't want to stop,' he said.
After Lagares pulled into third, every Cubs fielder went out to the warning track to aid DeJesus along with manager Dale Sveum, a trainer and a worker in an EMS top. But in an encouraging sign, DeJesus got up and walked off the field under his own power, his right arm hanging limp along his side.
Ryan Sweeney took over in center field, and DeJesus went for X-rays. He is headed to the disabled list with a sprained right shoulder, Sveum said, adding the outfielder will need more tests when the swelling goes down to determine a more definite prognosis.
Chicago was still deciding on a corresponding roster move for Saturday.
``Pretty much tried to run through a wall to catch a ball,' an appreciative Jackson said.
DeJesus, who grew up nearby in New Jersey and went to Rutgers, said it was the third time he was injured in a New York ballpark - including twice at Yankee Stadium. He said his parents and a close friend have been in the stands for each one.
``I've had some bad luck here,' he said.
Lagares scored on Murphy's two-out single, but Valbuena chased Marcum with a two-out RBI double in the sixth that made it 6-1.
New York got run-scoring singles in the seventh from Murphy and Lucas Duda off James Russell, but Wright was cut down at third by Alfonso Soriano's throw when he tried to go first to third on Duda's one-out single to left.
``Soriano made a great throw,' Collins said.
Carlos Marmol worked a perfect eighth and Kevin Gregg got three quick outs for his eighth save.
NOTES: Attendance was 32,208 on a night when Foreigner played a postgame concert at Citi Field. ... The Mets said injured LHP Johan Santana, trying to come back from a second major surgery on his pitching shoulder, was at Citi Field early in the day. ``He's coming along great. He feels really good. He feels better than where he was at this point with the first surgery, which is a great sign,' Collins said. ``Can't wait to continue, and hopefully come back and pitch again.' ... RHP Rafael Montero was promoted from Double-A Binghamton to Triple-A Las Vegas.
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