"I had no idea how special an offensive performer this young man was," Yost said. "This kid lives, breathes, drinks, [and] sleeps hitting. He's as prepared an offensive performer as any player that I've been around. He's got as good a two-strike approach as any player that I've seen -- and he's a very talented, special young player who's going to be with us when we're very, very successful in the years to come."
Butler said before Saturday's event that he and the Royals had agreed on a four-year, $30-million contract extension.