The Milwaukee Brewers optioned left-handed reliever Mitch Stetter to Triple-A Nashville on Tuesday, making room on the roster to activate Jeff Suppan to start against the Cardinals. Stetter was 2-1 with a 2.78 ERA in 23 appearances over two stints. He has held opponents to a .160 batting average, and went 1-0 with a 1.74 ERA since recalled on June 20, but was vulnerable because he has minor league...