Randy 'The Big Unit' was arguably the most dominant pitcher of all-time. But with baseball turning into a game of metrics, there is more to the game than overwhelming power. Let's have a look at what the numbers have got to say, after all, stats don't lie! 7. Clayton Kershaw (2008-Present) 6. Sandy Koufax (1955-1966) 5. Pedro Martinez (1992-2009) 4. Cy Young (1890-1911) 3. Randy Johnson (1988-2009) 2. Walter Johnson (1907-1927) 1. Christy Mathewson (1900-1916)
