There's also links to the scouting reports here. http://www.baseballamerica.com/online/prospects/rankings/league-top-20-prospects/2009/268936.html "By improving his changeup to a plus pitch, Perez took another step to support the Santana comparisons. He's confident enough to throw the changeup in any count and utilizes great hand speed to create deception. He also throws a sharp, late-breaking curveball at 75-78 mph. Perez made the most of his 80-pitch limit in each game and earned a callup to Double-A Frisco in mid-August."