The 2025 fantasy baseball season is kicking off with an eye on young pitchers who possess elite potential, particularly those with impressive Stuff+ ratings. The Stuff+ metric, developed by Eno Sarris, gauges the effectiveness of a pitch based on its velocity, movement, and spin rates. This year, several pitchers are emerging as breakout candidates, including Aaron Civale of the Milwaukee Brewers, whose curveball and slider show promise but are underutilized in his arsenal. Taj Bradley from the Tampa Bay Rays is also a name to watch; despite inconsistency, he displayed moments of brilliance in 2024, lowering his ERA significantly. Ryan Pepiot, another promising player from the Rays, is considered for his solid second-half performance, while Luis Gil of the New York Yankees raises some skepticism due to persistent control issues despite his potential. Lastly, Spencer Schwellenbach of the Atlanta Braves is attracting attention for his standout metrics, making him a top sleeper pick.