Jeremy Hefner (elbow) is scheduled to see a doctor Tuesday.

Hefner is dealing with a partially torn medial collateral ligament and the Mets haven't ruled out the possibility of Tommy John surgery. He's going for a second opinion before making a decision.

Jeremy Hefner (elbow) will see another specialist on Monday for a second opinion on his injured elbow.

Hefner has been diagnosed with a partially torn medial collateral ligament and may need Tommy John surgery. If that is the case, he is likely to miss most of, if not the entirety, of the 2014 season.

Mets placed RHP Jeremy Hefner on the 15-day disabled list, retroactive to August 10, with a partially torn medial collateral ligament.

Hefner had been optioned on Sunday, but he's now been redirected to the DL. The injury is considered a chronic condition that will not require surgery at this time, though his season is surely over. He's posted a 4.34 ERA and 1.29 WHIP over 130 2/3 innings for the Metropolitans.

Mets optioned RHP Jeremy Hefner to Triple-A Las Vegas.

Hefner is dealing with an elbow injury, so he'll actually probably wind up being placed on the disabled list. Either way, he's no longer in the rotation, as the Mets will go back to a traditional five-man setup for now.

Jeremy Hefner allowed three runs over six innings Saturday in a no-decision against the Royals.

Hefner allowed eight hits and no walks while striking out six. He entered Saturday's outing with a 12.34 over three starts since the All-Star break, so this was a nice step forward. Hefner's relevance in mixed fantasy leagues is likely over, but he's still capable of being a respectable fifth starter.

Jeremy Hefner will start for the Mets on Saturday after Carlos Torres had to be used in relief on Friday.

With the Mets currently utilizing a six-man rotation, Hefner can easily slide in on regular rest without disrupting the rest of the rotation. Zack Wheeler will now start on Sunday.

Jeremy Hefner allowed six runs -- five earned -- in 4 1/3 innings in a loss to the Braves on Wednesday.

Hefner was a victim of the long ball on Wednesday, serving up three home runs to Braves batters. It was the second straight poor outing for the right-hander since the All-Star break, as the Phillies lit him up for eight runs in two innings his last time out. He's probably not as good as the pitcher with a 3.33 ERA through 108 innings, but he's not as bad as these last two starts, either. He'll carry a 4.17 ERA into his start against the Marlins in Miami on Monday.

Jeremy Hefner was absolutely obliterated in Friday's loss to the Phillies, getting torched for eight runs on 10 hits in his two-plus innings of work.

Hefner did record three punchouts on the six outs he managed to get. He allowed a pair of four-run uprisings in the first and third innings before being handed the early exit. The disastrous outing takes Hefner's season ERA from 3.33 to 3.93. He'll look to get back on track on Wednesday when he takes on the Braves at home.

Mets manager Terry Collins said Jeremy Hefner will likely start next Friday against the Phillies.

Hefner is tentatively scheduled to open the second half of the season for the Mets and will be pitching on three extra days of rest. He has a 1.76 ERA over his last eight starts, dating back to June 4.

Jeremy Hefner allowed two runs in seven innings Friday in a tough-luck no-decision against the Pirates.

Hefner was nearly spotless aside from a two-run homer by Pedro Alvarez in the first inning, allowing just three hits and no walk while striking out three. He retired 14 batters in a row at one point. While he was handed a no-decision, his ERA now sits at 3.33 for the year. He continues to make believers out of fantasy owners.

Jeremy Hefner continued a stretch of dominance Sunday against Milwaukee, allowing one run on just two hits over seven frames.

He struck out eight and walked one. Hefner has allowed only eight earned runs over his last seven starts, deflating his ERA from 4.74 to 3.39. He's 4-1 since beginning the campaign 0-5. Hefner won't continue to dominate in this fashion, but he's worth using in mixed leagues until he cools off. He gets the Pirates next time out.

Jeremy Hefner limited the Diamondbacks to one run over seven innings in Tuesday night's 9-1 victory.

Hefner was sharp, scattering four hits and two walks while striking out six. He has been on a nice little run since the beginning of June and currently boasts a 1.26 WHIP and 3.54 ERA. None of this is meant to last, but the right-hander is a decent mixed league streaming option next time out against the battered Brewers.

Jeremy Hefner pitched six innings and allowed two runs -- one earned -- against the Rockies on Thursday.

It's the fourth straight start in which Hafner has allowed an unearned run, which has played a role in his ERA coming way down from 5.00 on May 18 to 3.72 now. This is probably as good as it gets for him. Most likely, his ERA creeps back over 4.00 as time goes on.

Jeremy Hefner surrendered three runs -- two earned -- over six innings Friday in a 4-3 win over the Phillies.

All three runs scored in the second inning. Hefner allowed 10 hits against one walk and six strikeouts for his second win of the season. His ERA now sits at a surprising 3.89 for the year. While the arrival of Zack Wheeler appeared to put his rotation spot into jeopardy, the injury to Jon Niese (shoulder) means that he'll be sticking around for a while longer. He makes for a solid option in NL-only leagues right now.

Jeremy Hefner gave up three runs -- one earned -- over five frames in Sunday's 4-3 victory over the Cubs.

Hefner allowed three hits and a run in the first but settled in to pitch pretty decently after that. He allowed six hits and a walk while striking out five for the day and avoided falling to 1-7 when the Mets rallied in the ninth. Hefner now holds a solid 3.96 ERA and 1.21 WHIP for the season, but note that he's given up seven unearned runs over his last two outings. When the Mets go to five starters, he's probably the likeliest to get the boot. For now, though, he's in line to start on Friday in Philly.

Jeremy Hefner allowed six runs - one earned - over six innings in Tuesday's loss to the Cardinals.

He gave up eight hits, walked one and struck out two. Hefner's defense certainly didn't help him in this one, especially in the Cards' five-run fifth when Daniel Murphy made an error to start off the frame and David Wright booted a ball that should have been an inning-ending double play. Nevertheless, it's not as if Hefner pitched well, as he allowed St. Louis to take advantage of their opportunities. He'll take a 4.11 ERA and 1.26 WHIP into this weekend's outing against the Cubs.

Jeremy Hefner deserved a win but was left with a no-decision Tuesday, tossing seven innings of one-run ball in a loss to the Nationals.

He gave up just four hits, walked one and struck out seven. Hefner was in line for his second win heading into the ninth, but Bobby Parnell failed to close out the win. Though he has only one victory over that time, Hefner has posted a quality start in four of his last five starts. He'll get the Marlins this weekend.

Jeremy Hefner allowed three runs over six innings to earn his first win of the season against the Yankees on Wednesday.

Hefner scattered nine hits over his six innings, striking out five. The right-hander has generally been better than his 1-5 record would indicate, and he should continue to get better as the season goes along. His next start will come Tuesday against the Nationals.

Jeremy Hefner gave up two runs in six innings Friday against the Braves.

The game was suspended after eight innings and will resume Saturday. Hefner gave up a two-run homer to Freddie Freeman in the first inning, but retired 16 out of the final 19 batters he faced before exiting. However, LaTroy Hawkins coughed up the lead in the top of the eighth, which means that Hefner is still winless. He stuck out seven and walked two in the no-decision and owns a 4.67 ERA and 1.27 WHIP across nine starts and one relief appearance this season. He's not an option outside of deeper NL-only formats.

Friday's game between the Braves and Mets was suspended due to rain.

The Mets tied the score at 5-5 in the bottom of the eighth inning before there was a rain delay going into the top of the ninth. Play will resume Saturday at 6:10 p.m. ET after which the second game of the series will be played.