The 2018–19 Cleveland Cavaliers season was the 49th season of the franchise in the National Basketball Association (NBA). The Cavaliers entered the season as the four-time defending Eastern Conference champion, and were coming off of an NBA Finals loss, in which they were swept by the Golden State Warriors in four games, the first Finals sweep since 2007, in which the Cavs were also swept, by the San Antonio Spurs. The Cavaliers had the worst team defensive rating in the NBA.

Tyronn Jamar Lue is an American professional basketball coach and former player who is the head coach of the Los Angeles Clippers of the National Basketball Association (NBA). Lue formerly served as the head coach of the Cleveland Cavaliers, helping them win their first NBA title in franchise history.