The Oakland Athletics placed Crosby on the 15-day disabled list Friday, retroactive to Tuesday, with a lower back strain. Crosby was on the disabled list from July 31-Aug. 17 with the same injury. He has missed 95 games over the last two seasons with injuries. (Updated 8/25/2006) Analysis: Crosby is hitting .229 with nine home runs and 40 RBI in 96 games this season.