Right-handed reliever Shawn Camp is the latest Seattle Mariner to volunteer to show how and when a pitch is thrown, and he chose the changeup.
This is the fifth in the seriesw, coming after Chance Ruffin (the slider), Dan Hultzen (the curve), Shawn Kelley (the fastball) and Steve Delabar (the split-fingered fastball). By now, if you're not a semi-professional pitcher, you're not paying attention.
A word of warning: Given the fact I have no training whatsoever in editing video, there are times these poor pitchers appear to jump and twitch - which they didn't do. Edits can be tough, but hey, the video is free.