4. Ramon Martinez

Birthplace: Santo Domingo
Years: 1988-2001
Team(s): Los Angeles Dodgers, Boston Red Sox, Pittsburgh Pirates
Record: 135-88
Career Era: 3.67

The "other" Martinez, Pedro's older brother Ramon was actually thought to be the better of the twirling Martinezes by Dodger brass, who traded Pedro for Delino DeShields in 1994 (sorry Dodger fans, just the facts). Still, Ramon was no slouch, pitching the official no-hitter that eluded Pedro, and finishing an excellent 47 games above .500 for his career. Jesus had brothers, too.