Mets LHP Steven Matz will have an MRI on his injured left middle finger on Wednesday, manager Mickey Callaway said.
Matz left Tuesday night's game against the Braves after the bottom of the third inning with discomfort in the finger.
X-Rays came back negative for Matz, who had limited the Braves to just one hit in three innings before he was forced out of the game.
The only hit Matz allowed came in the third inning when Ozzie Albies singled. Matz walked two batters and struck out two while throwing 42 pitches.