ESPN NY's Adam Rubin, Mets general manager Sandy Alderson labeled Johan Santana as a "question mark" and said he "might not be" ready for Opening Day.
Santana didn't throw a pitch in the majors this season after undergoing surgery on his left shoulder last September.
The Mets may have to go trolling for starting pitching behind Jon Niese, R.A. Dickey, Mike Pelfrey and Dillon Gee, because it's a fool's errand to count on Santana's health at this point.
"If we stick someone in, who's the logical person to go down? We don't really have a logical candidate to go down," Alderson said. "But we do have some question marks, of course, with Santana being one of them. We think he's going to be ready, but he might not be. That's where the depth becomes important."
Alderson mentioned Jeremy Hefner, claimed off waivers, as a pitcher who could potentially fill in.