Martinez, a third baseman/outfielder, was a member of the Tigers organization until being traded to the Mariners as part of the deal that brought Doug Fister to Detroit. Martinez has been optioned to Advanced-A Lakeland.
Martinez batted .227 with a .610 OPS for the Martinez' Double-A club last year. He's batting .206 with a .496 OPS for the same club this season. (Pretty sure people were disappointed when he was traded, too.)
Berry made waves for the Tigers in 2012 when he brought an immediate spark to the outfield in place of Austin Jackson, who had hit the DL at the time. His speed on the basepaths and enthusiasm helped, but so did a hot star -- he batted .364 with a .417 on-base percentage through his first 10 major league games.
Berry was batting .168 with .512 OPS for Triple-A Toledo at the time of the DFA. An injury during spring training seemed to eliminate any possibility he'd make the big league club in April, but playing poorly in the minor leagues for the past two months pretty much killed any chance he'd make it back to Detroit.