Top Fantasy Baseball Waiver Wire Options for This Week

NEW YORK, NY — As the 2025 MLB season progresses into its fourth week, fantasy baseball players are actively seeking valuable roster additions, particularly on the waiver wire. Recent performances have highlighted several players poised to contribute significantly in various categories.

Leading the charge is Tyler Fitzgerald of the San Francisco Giants, a versatile player eligible at second base, shortstop, and outfield. Currently, 44% of Yahoo leagues and 11.1% of ESPN leagues have Fitzgerald on their rosters. He is showing remarkable consistency with a .310 batting average and solid power numbers, having already belted two home runs this season after hitting 15 last year. With speed that allows him to steal bases effectively, Fitzgerald stands out as a multi-category contributor and is an admirable addition for any roster.

Chandler Simpson, newly called up by the Tampa Bay Rays, brings a different skill set entirely, focusing on stolen bases. Rostered in only 24% of Yahoo leagues and 11.5% on ESPN, Simpson’s incredible speed could redefine a fantasy team’s capabilities in that category. After showcasing a .355 batting average in the minors last season, he made an impressive debut, securing a spot in the leadoff position, where he can maximize his opportunities for scoring and stealing bases.

Amid other recommended additions, Sal Frelick of the Milwaukee Brewers emerges as a potential batting average and speed specialist. Frelick’s .319 batting average and five stolen bases thus far make him a promising addition for teams requiring bolstered offensive stats. His position in the middle of the Brewers’ lineup offers ample chances for RBIs as well.

In contrast, outfielder Austin Hays of the Cincinnati Reds is garnering attention after a strong start, including a standout performance where he hit a home run and drove in four runs in his debut. Hays, now settled in the cleanup spot, stands to benefit greatly from playing in the hitter-friendly environment of Great American Ball Park.

Speculative adds include pitchers like the Chicago Cubs’ Brandon Young. Following a successful stint in the minors, Young is being called up due to increasing injuries within the Orioles’ rotation and may provide a much-needed boost for fantasy rosters. His minor league performance showcased notable potential, and if he can translate that success to the major league level, he could add depth to any pitching staff.

Fantasy managers are also urged to consider the quality players gaining traction across both Yahoo and ESPN. This includes T.J. Walker and his intriguing pitching matchups as well as José Soriano, who is set to face weaker lineups following some inconsistent outings.

Additionally, Rotisserie players should keep an eye on potential streamers and other league-specific needs as the advanced metrics indicate promising trends for various players. With weather beginning to turn and team dynamics shifting, the waiver wire remains an essential tool for fortifying fantasy rosters through the season.