NEW YORK -- Dark smoke poured out behind center field at Citi Field on Saturday evening, when a fire started in a construction trailer in the Willets Point auto yards.

Fire Department of New York 52nd battalion chief Gene Marmann said there were no injuries.

The single-alarm blaze took about five minutes, 50 responders and eight emergency vehicles to extinguish. The cause of the fire, which was reported at around 6 p.m. ET, is under investigation.

Tires contributed to the darkness of the smoke, which did not billow over the playing field -- thanks to fortunate winds. Fires in the auto shop area are not uncommon because of its industrial nature.

Collins encouraged by Reyes' running drills

NEW YORK -- The Mets' Jose Reyes ran again on Saturday, testing out his injured left hamstring at Citi Field after working out at a training facility on Long Island the past few days. Manager Terry Collins, who watched Reyes run in person for the first time since the shortstop reinjured his hamstring on Aug. 7, was quite pleased with the progress Reyes has made toward a return.

"[Reyes looked] terrific," Collins said on Saturday. "We're going to find out how he feels tomorrow after coming out of his workout today, which was very, very good."

If Reyes feels up to it on Sunday, he will run the bases at less than full speed in order to see where he stands. If he's able to get up to full speed by Monday, he and the Mets will then figure out what the next step is for him to take.

Reyes will go to Philadelphia with the Mets on their upcoming road trip and practice with the team while he's there. He might need a Minor League rehab game or two but did not know whether he would again suit up for Class A Brooklyn, as he did during his last rehab stint.

"I don't want to say [I ran] full speed, but close," Reyes said. "I put a lot of pressure on my legs. ... Everything was very good today."

Future role unclear, Turner finding at-bats

NEW YORK -- Mets infielder Justin Turner returned to the starting lineup on Saturday after sitting out Friday to heal from being hit in the toe with a pitch on Aug. 11 and playing through soreness in his right hip flexor.

Collins said that while Turner has proved he belongs at the Major League level, it will be important for the Mets to be able to evaluate Turner for next year while he is at full strength.

"It just so happens that it started to get bad the other day because he got knocked down two or three times at second base on double plays that his legs were taking a beating," Collins said. "The one thing I don't want to do is put him in a situation at the end of the year where he's evaluated on the fact that he's struggling a little bit because of his legs. We may forget how good he was when he first got here, when he was really healthy. That's why I want to make sure when he's out there, he feels good."

Though he has since cooled off considerably, Turner hit .323 through the end of May, with a .369 on-base percentage and a .448 slugging percentage. It's possible he could come off the bench for the Mets in 2012 if injured infielders Daniel Murphy and Ike Davis are healthy and ready to play. If that's the case, Collins said he would make a point of getting Turner into games with some regularity to ease the adjustment.

"I think you have to make sure that they understand you know how hard it is to do that job, especially when you're a young player," Collins said. "If next year is the case where he becomes a role player, then yeah, you have to do a little job of selling it and making sure that you get him in there a couple of days a week, make sure that he gets the proper amount of at-bats that he needs to stay sharp.

"You put those guys in situations where they need to hit every once in a while; you've got to feel confident that they can get a hit."