Mets' Corey Oswalt: Optioned back to Triple-A

Oswalt was optioned to Triple-A Las Vegas after Tuesday's game against the Marlins, Anthony DiComo of MLB.com reports.

The Mets needed to clear a roster spot with Zack Wheeler tabbed as Wednesday's starter, so they sent Oswalt back to Triple-A just hours after calling him up. Oswalt will have to wait to make his major-league debut after not being called into action against the Marlins on Tuesday. He figures to rejoin the rotation once he arrives back in Las Vegas.