Shortstop-turned-pitcher making progress 

March, 13, 2010
3/13/10
7:19
AM ET
The first time that Sergio Santos took the mound in front of White Sox general manager Kenny Williams and the Chicago staff last spring, he could sense their enthusiasm for what they were watching, for the heavy, boring fastball that he was throwing in the mid-90s.

But Santos wasn't that excited. He wasn't really sure how he felt.

To understand why, you need to know that Santos was drafted by the Arizona Diamondbacks in the first round of the 2002 draft, as a shortstop. He reached Triple-A in 2005, just one step away from the majors. But that would be the first of five consecutive seasons for Santos at that level, and he moved from the D-backs' organization to Toronto to the Twins and back to Toronto, accumulating 3,145 at-bats.