Matz (5-9) allowed seven runs on eight hits and a walk over two-thirds of an inning against the Nationals on Tuesday. He struck out one and was tagged with the loss.
The Nationals exploded for 25 runs Tuesday to hand the Mets one of their most embarrassing defeats in team history, and Matz ended up throwing only 32 pitches to 11 batters. Matz was apparently battling a "dead arm" issue, but it's unclear whether he is in danger of missing a start at this point, Mike Puma of the New York Post reports.