Cubs purchased the contract of RHP Juan Mateo from Double-A West Tenn.
Mateo, 23, was selected in the Rule 5 draft by the Cardinals in December, only to be returned to the Cubs in March. He was 7-4 with a 2.82 ERA, 78 H and 70/26 K/BB in 92 2/3 IP for West Tenn. The Cubs will use him out of the pen for now, but he joins the rotation, he’ll be worth watching in NL-only leagues.