Brennan Boesch of the Detroit Tigers and David Cooper of the Toronto Blue Jays, a pair of former Cal hitting stars, were both released on Wednesday.

The Tigers announced on Twitter that Boesch, who hit .240 with 12 home runs in 132 games last year, but was left off the postseason roster, was released. He was in the mix for playing time this season in left field, but Detroit has other players who, like Boesch, hit left-handed. Andy Dirks and Quintin Berry have been competing for time at that position.

The 27-year-old Boesch tweaked an oblique muscle at the start of spring training. He also missed the entire 2011 postseason because of a right thumb injury that required surgery. Detroit also signed Torii Hunter this past offseason to play right field.

Meanwhile, Cooper, a former first-round pick by the Blue Jays in 2008, was let go after batting .270 with a .750 OPS in 72 games over the last two seasons for Toronto.

Cooper was still feeling the effects of a back injury that landed him on the disabled list at the end of the 2012 season. He had been competing for a reserve role.