Si Johnson vs. Mark Rogers — Career Comparison

Looking at the career totals, Si Johnson and Mark Rogers are fairly close on the surface numbers. Mark Rogers posted stronger numbers in ERA (3.49 vs 4.09) and WHIP (1.122 vs 1.401). Si Johnson had the advantage in home runs allowed (0.47 per nine innings vs 0.92). By the career numbers, Mark Rogers 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.