The New York Mets call up left-handed pitcher Jefry Yan from Triple-A Syracuse, according to multiple reports. Yan, a 29-year-old, is arriving as a rookie and is set to make his major league debut with the Mets after earning his opportunity in the minors. Both outlets describe him as a reliever known for energetic, highly visible strikeout celebrations, including loud screams and physical gestures after strikeouts. One report also says he has a track record of strong performance in the minor leagues, citing his ability to generate strikeouts and a dominant ERA as factors behind the call-up. The Mets’ decision is presented as occurring amid a challenging season, with the call-up framed as a notable change to the organization’s roster. The reports agree on the essential details: Yan’s promotion from Syracuse to the Mets, his age, his role as a left-handed pitcher/reliever, and the distinctive celebration style he brings to games.