The Astros have released right-hander Nelson Figueroa, according to Steve Campbell of the Houston Chronicle (on Twitter). Figueroa had been on the disabled list before getting released.
Figueroa started the season in Houston's rotation, but the Astros designated him for assignment in May after he posted an 8.69 ERA with 5.3 K/9 and 5.0 BB/9 in 29 innings. The 37-year-old spent most of the season at Triple-A, where he posted a 6.50 ERA with 5.7 K/9 and 3.3 BB/9 in 81 2/3 innings.