Mets scratch top prospect Jonah Tong amid rotation uncertainty

Jonah Tong was scratched from his scheduled Wednesday start for Triple-A Syracuse, and in a Mets system already hunting for innings, that is the kind of move that turns into a roster watch in a hurry. Tong was described as fully healthy, which pushed the attention away from injury and toward the possibility that the Mets are weighing a call-up at a time when their rotation picture has been shaken by Clay Holmes’ fractured right fibula and 15-day injured-list stint.

Tong is not just any arm waiting in Syracuse. MLB Pipeline ranked him as the Mets’ No. 3 prospect and the No. 48 prospect in baseball in March, a reminder that this is one of the most important pitching decisions in the organization right now. The right-hander, born June 19, 2003, in Markham, Ontario, was drafted by the Mets in the seventh round in 2022, 209th overall. He made his major league debut on August 29, 2025, and the first look was rough, with a 7.71 ERA over five starts.

The Triple-A numbers are just as revealing, because they show both the ceiling and the volatility. In nine starts for Syracuse this season, Tong was 1-3 with a 5.68 ERA, 55 strikeouts and a 1.37 WHIP over 38.0 innings. That strikeout total is the pitch that keeps him relevant to the Mets’ future, even if the run prevention has been uneven. He punched out nine on April 22 and followed that with six strikeouts over six innings on May 2, the kind of outings that make front offices dream on fastballs and breaking stuff. Then came May 15, when Syracuse got seven runs off him in just 1.2 innings, a reminder that the margin between a top prospect and a Triple-A arm can disappear fast.

The timing is what gives the scratch its weight. The Mets’ probable-pitcher page for Wednesday listed Nolan McLean as the starter that day and showed the next day’s pitcher as TBD, which only deepened the sense that Tong’s removal was tied to something bigger than Syracuse’s rotation calendar. Carlos Mendoza and David Stearns are dealing with a staff that has already been forced into adjustment mode, and a healthy Tong sitting out his turn is now part of the same conversation. Around this organization, a late scratch by an upper-level arm rarely stays a simple lineup note for long.