King Felix — and his masterful changeup — gets the royal treatment

Felix Hernandez throws during the fourth inning of his perfect game. The Mariners had just given him a 1-0 lead the previous inning. That was the final score. (Ted S. Warren/The Associated Press)
A new book, "Off Speed," by Terry McDermott, explores pitching, Felix Hernandez’s 2012 perfect game and life — one pitch, and one inning (or chapter) at a time. Hernandez is pictured above, during the fourth inning of his perfect game. (Ted S. Warren/The Associated Press)

In the hands of Mariners pitcher Felix Hernandez, the old-fashioned changeup is elevated to perfection.