Tigers first baseman Miguel Cabrera and designated Victor Martinez are both running bases for the first time since undergoing surgery, according to MLB.com.
Cabrera, 31, had surgery to remove bone spurs from his ankle back in October. The first baseman finished 2014 with a batting average of .313 with 25 homeruns.
Martinez tore the medial meniscus in his left knee in February. In 2014 he batted .335 with 32 homeruns.
The Tigers are hopeful that both players will be ready to go by opening day, but there is no definite timetable for their respective returns.