Morris was designated for assignment Monday, Bernie Pleskoff of MLB.com reports. Morris will be removed from the 40-man roster to clear space for Corey Knebel and Luis Sardinas, who were both acquired from the Rangers in Monday's Yovani Gallardo deal. Morris spent last season at Triple-A Nashville, where he hit .279 with 42 RBI and 11 home runs in 330 at-bats.