Update: It sounds like the Mets will promote Chris Schwinden to make Pelfrey’s start on Friday. Thank goodness. In four starts for Buffalo this season, Schwinden has pitched 22 innings with 13 strikeouts and nine walks and a 2.05 ERA. Those aren’t mind-blowing stats, but we’ll take them.

Original Post: It turns out that Ronny Cedeño was just the tip of the iceberg. Today, both Jason Bay and Mike Pelfrey have hit the disabled list. Bay has a broken rib that he apparently suffered when he dove for the Gregor Blanco double last night. Pelfrey is dealing with elbow swelling.

Both Pelfrey and Bay are players who fans are less than enthusiastic about, but both have been decent enough this season (Pelf maybe more than decent) that the Mets will miss their production. Pelfrey has made at least 30 starts in each of his past four seasons, so hopefully he only misses three or four starts. Also, the Mets have no starting pitching depth.

Bay is more replaceable because Kirk Nieuwenhuis has been surprisingly good and Andres Torres is on his way back (he was 3 for 4 in a rehab start in Port St. Lucie last night). Also with Jordany Valdespin recently called up, the Mets can now more easily get the youngster playing time. Scott Hairston is an option who can step in to play left field and more easily match Bay’s offensive production.

Robert Carson has been called up to replace Pelfrey, while Zach Lutz takes Bay’s spot. Back in March, Carson was in the mix to be the left-handed guy in the major league bullpen before Byrdak returned from injury. At AA Binghamton, Carson has six strikeouts, one walk and two runs allowed in 5.2 innings. That’s all in five relief appearances, so we are could be looking at the grim prospect of Miguel Batista making some more starts. Of course, he was so bad yesterday versus San Francisco that the Mets could make another roster move prior to Pelfrey’s next scheduled start on Friday.

Lutz has been tearing the cover off the ball at AAA Buffalo so far. He’s hitting .333/.425/.556 with three home runs. That makes him a great pinch-hitting option off the bench, but Lutz is a third baseman by trade, so it doesn’t look like he’ll get many starts unless the Mets want to cram him into left field. Spelling Ike Davis versus lefty starters is a possibility, though.