Jonah Tong has rejoined the New York Mets major league roster, bringing a revamped pitching arsenal and what he describes as a "boatload of experience" in hopes of establishing himself at the highest level. The 23-year-old right-hander's arrival on Sunday was met with enthusiasm from teammates and the fanbase, following a tumultuous period that saw him navigate both success and setbacks.
Mets manager Carlos Mendoza will give Tong a prolonged opportunity in the rotation, a significant shift from his previous stints which were often characterized by short appearances and quick returns to Triple-A. Tong's journey to this point has been a mix of rapid ascent and learning experiences. He reached the majors in 2025, perhaps sooner than anticipated, and struggled to a 7.71 ERA in five games. His early 2026 season was also inconsistent, marked by a 6.00 ERA with Triple-A Syracuse as late as July 9, and a brief major league call-up that ended with a five-run outing in Seattle.
"There's so many things that we have control over in our career, and sometimes there's just lessons that need to be learned, and I'm just really excited to see the person that I've become out of it," Tong said Sunday. He emphasized that while he remains the same person, the experience has been invaluable.
Pitching Evolution
Tong's approach to pitching has undergone significant changes. Last season, he primarily relied on a dominant four-seam fastball and a deceptive changeup, making him a two-pitch pitcher. Major league hitters quickly adapted, exploiting this predictability. In response, Tong dedicated himself to developing a more complete repertoire, focusing on improving his curveball and adding a cutter this spring.
His mechanics have also shifted, with a noticeable drop in his arm angle. He threw from an extreme 64-degree angle in the majors last year, but has since adjusted to a less extreme 51-degree angle, which he believes aids his breaking pitches. "I think I'm pretty happy with how I am," Tong said of his current arm angle. "I'm not really too focused on that."
These adjustments appear to be yielding positive results. Over his last eight outings with Triple-A Syracuse, Tong has posted a 2.20 ERA and held opponents to a .185 batting average. He has regained confidence in his changeup and found comfort with his cutter, which has limited opposing hitters to a .174 average and .530 OPS during this recent stretch.
Extended Opportunity
Interim manager Andy Green acknowledged Tong's recent success, noting his ability to rediscover his changeup through consistent use. "It's just more getting comfortable with it again," Tong explained. "Like everything, pitching is based on feel, and I felt like I've been in a really good spot with that and other pitches and happy with how things have been going."
Tong's recent performance has earned him a place in the Mets' starting rotation, providing him with the chance to prove he belongs. "He's going to continue to post when it's his turn to pitch, and he hasn't really had that knowledge at any point in time in his short big league career -- it's always been: You come up here and you throw a few innings and then you're probably going back," Green commented on Tong's opportunity. This extended audition provides Tong a chance to be part of the conversation for the 2027 rotation alongside pitchers like Nolan McLean, Christian Scott, Zac Thornton, and Sean Manaea. Tong, however, is focused on his upcoming start. "I'm starting Monday, and I just can't wait for that."