In the last eight days, the White Sox have put four players on the injured list.
Aaron Bummer, arguably the team's best and most important relief pitcher, became the latest to join the sizable contingent of banged-up South Siders when the team sent him to the 10-day injured list Saturday morning with a biceps strain.
Bummer departed Friday night's game against the Cleveland Indians with biceps soreness after noticing something was amiss when he threw a pitch in the seventh inning. That pitch was immediately preceded by a throwing error, Bummer spiking a throw to first base into the ground and putting two men on base with two outs.