 After missing 11 games, he returned for a December 11, 2018 home game against the Detroit Red Wings, scoring a goal in the 6-2 Caps win.On April 18, 2019, during Game 4 of the First Round series between the Capitals and the Carolina Hurricanes, Oshie was severely injured after being cross-checked into the boards by Hurricanes forward Warren Foegele.Later tests revealed the injury to be a broken collarbone, and Oshie was ruled out indefinitely.