Mets place left-handed pitcher Steven Matz on the DL

Recall right-handed pitcher Robert Gsellman

The New York Mets today announced that the club has placed left-handed pitcher Steven Matz on the 15-day disabled list, retroactive to August 15, with left shoulder tightness and recalled right-handed pitcher Robert Gsellman from Las Vegas (AAA) of the Pacific Coast League. Matz underwent an MRI earlier today at the Hospital for Special Surgery, which revealed no structural damage to his left shoulder. Gsellman will wear #65.

Additionally, prior to tomorrow's game, the Mets plan to place infielder Neil Walker on the paternity list and recall infielder TJ Rivera from Las Vegas.

Gsellman, 23, opened the season with Binghamton (AA) of the Eastern League and went 3-4 with a 2.71 ERA (20 earned runs/66.1 innings) in 11 starts for the BMets before a promotion to Las Vegas. In nine starts for the 51s since his promotion, Gsellman is 1-5 with a 5.73 ERA (31 earned runs/48.2 innings).

In 2015, Gsellman was the Sterling Organizational Pitcher of the Year after going a combined 13-7 with a 2.89 ERA (46 earned runs/143.1 innings) in 24 starts between St. Lucie (A) of the Florida State League and Binghamton.

Gsellman was originally selected in the 13th round of the 2011 First-Year Player Draft out of Westchester (CA) High School. In 101 career games (89 starts) in the minor leagues, Gsellman is 34-31 with a 3.10 ERA (186 earned runs/539.1 innings) with 390 strikeouts.

Rivera, 27, played in nine games for the Mets from August 10-August 18 and batted .355 (11-31) with two doubles, three RBI and three runs scored.