By JON COUTURE
jcouture@s-t.com
April 21, 2009 6:00 AM
BOSTON — Of all of Justin Masterson’s statistical numbers as Monday’s winning pitcher for the Red Sox, the most impressive might have been his age. At 24, Masterson’s already been (and will continue to be) a critical piece of a championship-level team.
He’s hardly alone. Dustin Pedroia was 24 through [...]