Matz was optioned to Triple-A Las Vegas on Saturday, Newsday's Marc Carig reports. This was in the cards for Matz from the get go, but his strong showing while with the major league team this spring figures to put him near the top of the list of in-season replacement options. Dillon Gee was moved back to the rotation after Zack Wheeler went down with a torn UCL, leaving Matz behind perhaps only Rafael Montero and Noah Syndergaard. Matz gave up just one earned run on three hits and one walk with three strikeouts over six Grapefruit League innings.