Jeremy Hefner is having a baby! Well, his wife is at least, and the Mets will use the situation to temporarily bolster their bullpen. Robert Carson, the lefty from Mississippi, is the lucky Bison getting called up. The move makes sense considering the heavy workload that Josh Edgin has had to suffer through lately. Look for Carson to get some use tonight if the Mets need to get a lefty out.

Carson was briefly with the Mets earlier this season. He allowed two runs in three innings while walking two and striking out none. He’s almost certain to do better this time around, but you never know.

Regarding Johan Santana, the Mets are now uncertain if he’ll even start this Thursday. Late last night, the team announced that Santana was going to have an MRI on his back and now he might not be able to go on Thursday. In his stead, either Collin McHugh or Jenrry Mejia could get the start.

I’m also thinking that McHugh should be the guy if Santana can’t go. He’s been a lot more effective than Mejia’s been at triple-A this season. A lot of people think he’s even a better option than Hefner in the majors.

Alright, here’s the Mets lineup for tonight:

Terry Collins has loaded the lineup with lefties against Colorado’s Jhoulys Chacin. Tonight, Chacin is making his first start since May 1 (he was on the disabled list with shoulder inflammation) and of his five starts this season, only one of them went for more than five innings. This should be interesting.

Hey, there’s Ramon Hernandez, the guy the Mets almost traded for. Would he have cost more than Pedro Beato, the piece that the Mets traded to get Kelly Shoppach? Nobody knows, but hopefully Mets starter Chris Young can work the same kind of magic he used to hold the Reds to zero runs last week. Mets fans should hope for lots of cans of corn tonight.

That’s all for now. Follow me @apy5000 and enjoy the game.