As the 2025 MLB season approaches, savvy fantasy players are looking to stash potential breakout pitchers ahead of Week 1. Bubba Chandler, the top prospect in the Pittsburgh Pirates organization, is generating buzz as he remains at Triple-A but could soon be promoted, especially with Jared Jones sidelined. Brandon Sproat of the New York Mets is another name to watch, despite starting the season in the minors due to injuries in the rotation. His impressive stats in lower levels suggest he might shine if given the chance. Meanwhile, Zebby Matthews of the Minnesota Twins has shown strong spring performances and could emerge quickly if others falter in the big leagues.

Quinn Mathews and Michael McGreevy from the St. Louis Cardinals are also intriguing, both having had solid minor league campaigns, although they face challenges at Triple-A. The Colorado Rockies' Chase Dollander, a recent draft pick, is a name to stash for deeper leagues as he possesses high potential. These pitchers represent the type of high-upside talent that could make a significant impact in fantasy leagues.