Gsellman is expected to be recalled by Mets, Ken Rosenthal of Fox Sports reports.
While the move is not official, it looks as though the Mets will bring up the right-hander, and he'll likely take the roster spot of Steven Matz, who's expected to land on the DL with a shoulder strain. While Gsellman has worked exclusively as a starter in the minors, the plan is apparently for him to begin as a bullpen arm. The 23-year-old holds a 5.73 ERA across nine starts at Triple-A Las Vegas this season, up from the 2.71 ERA he posted in 11 starts for Double-A Binghamton.