If you’re a fan of baseball, you’ve probably heard of the Atlanta Braves’ recent signing of Jackson Stephens. But if you don’t know his name, what is his story? In a nutshell, Stephens has a mixed pitch mix. He uses four pitches, including a four-seam fastball, a curveball, a sinker, and a changeup. While Stephens’ four-seam fastball has been his most effective pitch in the big leagues, the other three have had a limited role. His curveball has had the most success, holding opposing batters to a.192 AVG.