Deduno (hip) was outrighted off the Astros' 40-man roster Tuesday.
The 32-year-old made just nine appearances (two starts) in 2015 before succumbing to a season-ending hip injury, allowing 16 runs with a 17:9 K:BB in 21 innings. He was always a long-shot to maintain his 40-man spot through the Rule 5 roster deadline.