To replace Hefner in the interim, the Mets recalled lefty reliever Robert Carson from Triple-A Buffalo, where he posted a 1.72 ERA in 10 appearances. With Tim Byrdak out for the season, Carson could receive ample work once rosters expand in September, teaming with Josh Edgin as a second lefty in New York's bullpen.
Because of that, the Mets were glad to afford Carson a bit more big league experience in advance of his September assignment.
"I'd like to try to, if I can, have him face somebody," manager Terry Collins said. "The more times I run him out there, the better idea we'll have. I think obviously there's a pretty good chance he'll be here in September anyway, so it would be good to get him some more time on the mound."