The Cubs released left-handed reliever Trever Miller, Doug Padilla of ESPNChicago.com tweets. The Cubs had signed the Praver/Shapiro client to a minor league contract in January.
Miller, who turns 39 in May, posted a 3.80 ERA with 5.1 K/9, 5.1 BB/9 and a 38% ground ball rate in 21 1/3 innings for the Cardinals, Blue Jays, and Red Sox in 2011. He started the season in St. Louis, went to Toronto in a July trade, and signed with Boston after the Blue Jays released him.