Willie Collazo vs. Romulo Sanchez — Career Comparison

Looking at the career totals, Willie Collazo and Romulo Sanchez are fairly close on the surface numbers. Romulo Sanchez posted stronger numbers in ERA (4.04 vs 6.35) and WHIP (1.346 vs 2.294). Willie Collazo had the advantage in home runs allowed (0 per nine innings vs 0.5). By the career numbers, Romulo Sanchez had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.