When the Kansas City Royals called Salvador Perez to the big leagues in August 2011, there was little fanfare. At the time, he was an unheralded prospect. He wasn’t a total nobody, but take a look back at pre-season system rankings and you won’t find his name near the top spots. John Sickels at Minor League Ball listed Perez as the Royals’ 18th-best prospect in January 2011 and gave him a ‘C+’ grade. Sickels defined a ‘C’ prospect as
the most common type. These are guys who have something positive going for them, but who may have a question mark or three, or who are just too far away from the majors to get an accurate feel for.