Jeff Buchanan at the blog FutureSox.com breaks down the performance of Sergio Santos, the White Sox converted pitching prospect who impressed with his velocity in the Arizona Fall League, using Pitch f/x data obtained this fall in Arizona.
Santos was added to the 40-man roster to protect him from the Rule V draft, but he is out of options, so he will have to make the club out of Spring Training for the White Sox to avoid having to expose him to waivers.

