What Matz’s imminent return could mean for the Mets’ rotation

Steven MatzMIAMI — The Mets’ rotation could become a six-pack within the next week.

With rookie Corey Oswalt pitching at a respectable level and Steven Matz potentially on the verge of coming off the disabled list, manager Mickey Callaway said Friday that a six-man rotation is under consideration.

Oswalt is scheduled to start Saturday in Matz’s place for a second turn through the rotation. The lefty Matz, who has been sidelined by a flexor pronator strain in his arm, is expected to throw a simulated game at Marlins Park.

If Matz passes the test, he could rejoin the rotation for Thursday’s doubleheader in Philadelphia, according to Callaway.

But even beyond that doubleheader, Callaway said he…