In 2008, before knee surgery and elbow surgery, Santana’s fastball sat in the lows 90s and his changeup induced strikeouts 22.4 percent of the time, according to pitch tracking data from TexasLeaguers.com. Here in 2010? His fastball sits in the high 80s.
His changeup causes swinging strikes 15.8 percent of the time. His strikeout rate (6.51) is the lowest in his time as a starter.
via Mets ace Johan Santana needs shoulder surgery after MRI reveals tear | NJ.com.