Mike's starting pitcher (SP) fantasy baseball waiver wire pickups for Week 21 of 2025 (August 18 - August 24). These are his top free-agent pitchers to add and stream.

Welcome, everyone, to our starting pitcher fantasy baseball waiver wire pickups for Week 21 of the 2025 season (August 18 - August 24). In this weekly piece, we search for starting pitchers rostered in less than 50 percent of Yahoo! leagues. For deeper leagues, we try to find pitchers rostered in less than 30 percent of Yahoo! leagues.

Week 21 finds fantasy players scrambling for every counting stat and available points in their leagues. Are you in need of wins? Are you looking for strikeouts? Perhaps you are searching for ratio help? We have someone who can help you in each category here.

Let's see what is on the wai

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