This will mark the final option year for the 29-year-old Sewald, who has been up and down between the Mets and their top minor league affiliate for much of the past three seasons. The 2012 tenth-round pick made 57 appearances and racked up 65 1/3 innings out of the ’pen in his debut effort back in 2017. His time in the big leagues since that time has been more sparse. He spent just 19 2/3 frames with the Mets this past season. To date, Sewald has posted a 5.16 ERA in 141 1/3 innings — an ugly number despite strong marks of 9.5 K/9 and 3.0 BB/9. Fielding-independent metrics are more bullish on him, in part because of his abnormally low strand rate (64.3 percent). Given Sewald’s prior MLB experience, he’ll likely be called upon again in 2020 as injuries arise.
Zamora, 26, has only pitched 17 2/3 innings in the Majors, but he’s managed 24 punchouts against six unintentional walks in that tiny sample (a 31.1 percent overall strikeout rate). A rare 40th-rounder who’s made it to the big leagues, Zamora has steadily posted quality ERA, strikeout and walk marks throughout his minor league tenure and should continue to receive opportunities to establish himself in the big league bullpen.
The Mets brought Brad Brach back for the 2020 season and also inked Dellin Betances, adding that pair of righties to the existing core of Edwin Diaz, Seth Lugo, Jeurys Familia, Justin Wilson and Robert Gsellman. That limited the chances of either Sewald or Zamora earning Opening Day roster spots, although if the league does begin with expanded rosters this summer when teams ramp up (as has been rumored), it’s possible that either could again be considered for a bullpen spot.