Stephen Strasburg
On December 20, 2017, the Washington Nationals signed Milone to a minor league contract, with an invite to spring training. On July 26, 2018, he was called up in place of Stephen Strasburg in the rotation. Milone was reassigned to the bullpen on August 18. On September 4, Milone was outrighted off the roster. For the season he was 1-1 with a 5.81 ERA. He declared free agency on October 2, 2018.