on 8 july 2016, casado signed for real zaragoza also in the second tier. on 6 july of the following year, he moved abroad for the first time in his career after agreeing to a contract with superleague greece club xanthi fc. he made his debut for the latter in the season opener, a 0–0 home draw against pas lamia 1964; his first goal in the competition came on 29 april 2018, when he helped the hosts defeat athlitiki enosi larissa f.c. 1–0.