Wolf had cleared waivers and was outrighted to the minors on Nov. 4. He re-signed with Texas that same day on a minor-league deal with an invitation to spring training.
Wolf, 31, was 1-3 with a 4.15 ERA in 22 appearances (three starts) for the Rangers last season. It was the first time he had pitched in the majors since 2007. He was on the Rangers' 25-man roster for much of the final four months of the season.