NBA sources have told ESPN that Boston Celtics center Al Horford will decline to exercise his $30.1 million option for the 2019-20 season and seek to leave the franchise as an unrestricted free agent this summer.
Horford, a five-time All-Star, has been with Boston for three seasons and is reportedly a favorite of Celtics staff and players.
Horford averaged 13.6 points and 6.7 rebounds for the Celtics this past season. He left Atlanta for a four-year, $113 million free-agent deal with Boston. He has been to the Eastern Conference playoffs 11 times in his 12-year pro career and won two national championships at the University of Florida.
Information from Espn.com contributed to this report.