Allen, 26, hit .100 (2-for-20) in 10 games for the Rays before injuring his right quadriceps on May 9. He is out of options, so he must clear waivers in order to be sent to the Minor Leagues.
Allen's best moment for the Rays occurred on April 26 when he hit a two-run walk-off homer against the Angels for a 4-3 Rays win.
Bill Chastain is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.