Carlos Zambrano yields seven runs, leaves with stiff back

Marlins righty Carlos Zambrano entered Saturday’s start against the Rays with a superb 2.81 ERA and 1.18 WHIP. By the time his 2 1/3 innings were done, his ERA was 3.55 and his WHIP was 1.18. Big Z surrendered seven earned runs on five hits and three walks to Tampa Bay before exiting in the…