Athletics starter Sonny Gray is encouraged with the progress of his changeup, according to the San Francisco Chronicle.
Gray tossed batting practice Friday, and got some good feedback from hitters on his changeup. He was primarily a two-pitch guy last season, relying on his fastball and curve. Adding an effective third pitch would go a long way toward establishing Gray as a top line starter. Gray used the changeup just 5.1% of the time last season.
Gray posted a 2.67 ERA in 64 innings. He's expected to open the year in the team's rotation.