NEW YORK (WFAN/AP) — A steamy day at Citi Field turned into a painful one for the Mets when their top two hitters went down with injuries.

Jose Reyes strained his troublesome left hamstring again during a 6-5 loss to the Atlanta Braves on Sunday, the Mets confirmed on Monday. His status “will be determined later today,” the team said.

Daniel Murphy was helped off the field with what the team says is a sprained MCL in his left knee. The surgery isn’t expected to require surgery, though Murphy will likely miss the remainder of the season. Recovery time is estimated at six-to-eight weeks.

Murphy will be placed on the 15-day disabled list. Ruben Tejada will replace him on the 25-man roster.

“We’ve been struggling offensively as it is. Now we lose a guy hitting .335 and another guy hitting .320, obviously that’s going to be difficult to overcome,” said third baseman David Wright, who found himself filling in at shortstop for the first time in his major league career. “We know it’s going to be a tremendous uphill battle to try to score runs.”

The Mets are now nine games behind Atlanta for the National League wild card.

Listen: Alderson on the injuries to Reyes and Murphy

“I was sick to my stomach for Murph,” Terry Collins said. “He seemed to think he was hurt pretty severely.”

Braves youngster Jose Constanza hit his first major league home run — he also got his first stolen base, spiking Murphy hard in the process on a clean but awkward play.

Constanza’s foot popped up off the bag when he slid hard into second and came down on Murphy’s prone left leg, between his ankle and knee. The lower portion of Murphy’s leg was driven awkwardly toward the ground, and he hobbled away immediately in pain.

Murphy, out of the majors in 2010 because of two right knee injuries, stayed down in the outfield for a while before he was helped off the field.

“He was in a lot of pain. He just said, ‘Get me off the field,’ that’s all he kept saying, ‘Just get me off the field,'” Collins said.

Reyes, the NL batting leader, was lifted in the second because of a stiff left hamstring, the same spot that landed him on the DL last month.

The Mets, who traded Carlos Beltran in late July, are also missing injured first baseman Ike Davis.

“We’re not going to stop the focus, we’re not going to throw our hands up,” manager Terry Collins said. “We’re going to find somebody to come in and play some spots, and with that there will be expectations of people that are going to fill in there.”

Longtime nemesis Chipper Jones hit a tiebreaking single off Bobby Parnell (3-4) in the ninth inning and Atlanta handed the depleted Mets their sixth loss in seven games.

After almost 3½ hours of back-and-forth baseball, it was a difficult defeat to endure.

“It felt like it was about a 12-hour game,” said rookie Justin Turner, who went from second base to shortstop and back to second base. “We felt like we literally just walked off a battlefield, with the heat and all the switching around and the grinding and coming back and tying it up. It’s tough, mentally and physically.”

Jason Heyward, Alex Gonzalez and Constanza homered early for the Braves, who finally solved New York rookie Dillon Gee. Dan Uggla extended his career-best hitting streak to 28 games.

Gee entered 2-1 with a 1.52 ERA in four outings against Atlanta, including two wins and a 0.54 ERA in three starts this year. He was originally slated to start Wednesday night against Florida, but that game was rained out.

“I’m just really disappointed. Obviously, I didn’t get the job done,” Gee said. “I hate to see Parnell come in and get a loss for a game that I really lost. I never really gave us a chance today.”

Jason Bay had three hits, three runs and a stolen base for New York during a perfect day at the plate. He singled leading off the ninth but was erased when he ran into a tag on Angel Pagan’s double-play grounder.

After a walk, closer Craig Kimbrel retired Nick Evans on a grounder for his 34th save in 39 chances. A fired-up Jones pumped his fist emphatically after making the throw from third to end it.

“It was a good win for us. We needed it. Badly,” he said.

A humid, 86-degree day in Queens turned sour when Reyes and Murphy got hurt. New York made three errors and lost two of three in the series against the NL wild card leaders.

Jonny Venters (6-1) worked a hitless inning for the win.

Braves lefty Mike Minor was called up from Triple-A Gwinnett for the fourth time this season to start in place of injured All-Star Jair Jurrjens, who went on the 15-day disabled list Saturday because of a strained right knee.

Minor left with a 5-2 lead and two outs in the sixth, but the bullpen couldn’t hold it.

Murphy entered as a pinch-hitter and drove in a run with an infield single, a dribbler up the third base line. Willie Harris cut it to 5-4 with an RBI single.

Bay scored the tying run in the seventh when left fielder Martin Prado missed an attempt at a sliding catch, misplaying Pagan’s sinking liner into an RBI double.

The injuries forced Collins to get creative with his defensive alignments. In the seventh, he moved outfielder Scott Hairston to second base. By the eighth, Hairston was back in right field and Wright was playing shortstop.

Notes: SS-2B Ruben Tejada will be recalled from Triple-A Buffalo to take Murphy’s spot on the roster. Alderson said the Mets would wait and see about Reyes’ injury before deciding if another roster move is needed. … New York begins a four-game series Monday night against San Diego, with Mike Pelfrey on the mound.

Statement from the Mets:

Jose Reyes left the game yesterday in the second inning after experiencing stiffness in his left hamstring.

Daniel Murphy was removed from the game in the seventh inning after sustaining an injury to his left knee.

Reyes received an MRI and was examined yesterday at the Hospital for Special Surgery (HSS). He has a strain of his left hamstring. His playing status will be determined later today.

Murphy also received an MRI and was examined at HSS yesterday. He has a sprain of the medial collateral ligament (MCL) of the left knee. Recovery time from this injury, which should not require surgery, is estimated to be six-to-eight weeks. Murphy is likely out for the season. He will be put on the 15-Day Disabled List today and will be replaced by Ruben Tejada on the 25-Man Roster.

Do the Mets have any shot of a playoff spot now? Sound off below…

(TM and Copyright 2011 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2011 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

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