The Marlins activated King (ankle) from the 15-day injured list Thursday.
King required just a minimum absence with a sprained left ankle. He did not go out on a rehab assignment, as the Marlins were satisfied with how King looked throwing to live hitters this week. The lefty reliever holds a 2.48 ERA and 30:10 K:BB across 40 innings this season with six wins, four holds and a save in 40 appearances.