Curtis, who pitched in eight games for the Rangers in 2018, leaves the organization after posting an 8.90 ERA over 30.1 innings at Nashville. The 27-year-old left-hander becomes a free agent.

The deal includes an invitation to major-league spring training. The lefty has thrown 38 major-league innings over the last three seasons, pitching for four different organizations. He owns a 4.74 ERA and an ugly 34:35 K:BB.

Curtis spent time at the big-league level with both the Phillies and Rangers in 2018. He registered a 4.96 ERA with 18 punchouts over 16.1 innings and struggled with his command, issuing 19 walks over that span.

Curtis will join the Rangers for the first time since being claimed in early August. The 26-year-old has a career 3.73 ERA and 1.63 WHIP over 31.1 innings and adds to the Rangers' bullpen depth with September's expanded rosters.