Matz (elbow) will make a rehab appearance Thursday at High-A Port St. Lucie, Matt Ehalt of the Bergen Record reports.
Matz threw 30 pitches in extended spring training Saturday, marking his first game action since he was placed on the disabled list to open the season. He's had no issue since returning to throwing in Florida, and if all continues to go well, expect the lefty to rejoin the rotation sometime in early June.