Schwellenbach got a taste of the big leagues last year with 21 starts for the Braves. He posted a 3.35 ERA in 123.2 IP with 14 home runs allowed and 127 strikeouts on 23 walks. Now entering his age 25 season and locked into the Braves’ rotation, Schwellenbach might be the next piece to extending Atlanta’s championship window.

With that in mind, we reached out to sources throughout Major League Baseball to identify one player to watch for every team this spring in Arizona and Florida -- and we came up with quite the eclectic mix.

To help us break down the most important storylines of spring training, The Athletic surveyed 32 execs, former execs, coaches and scouts.