Dirks (back) is expected to resume baseball activities in 7-to-10 days, Gregor Chisholm of MLB.com reports. The 29-year-old reported to minor league camp to continue rehabbing the back injury that cost him all of 2014, but he could join major league camp before long and enter the mix for left-field playing time. Michael Saunders is set to miss the entire first half due a torn meniscus in his knee. Dirks hit .256/.323/.363 with nine homers and 37 RBI in 131 games (484 PA) with the Tigers in 2013.