Andrew Michael Sonnanstine
- Bats Left, Throws Right
- Height 6' 3", Weight 185 lb.
- School Kent State University
- High School Wadsworth High School
- Debut June 5, 2007
- Final Game September 20, 2011
- Born March 18, 1983 in Barberton, OH USA
After being out of baseball since 2011, Sonnanstine began working on a knuckleball in 2016 with the hope of returning to the major leagues by throwing the specialty pitch.
- Adam Woodard: "Former MLB pitcher Andy Sonnanstine sees knuckleball as a way back", USA Today Sports, July 11, 2016.