According to a league source, Kornet has agreed to a four-year, $41 million in San Antonio. Another Celtics big man, Al Horford, was said to be mulling over offers. The Celtics did add a center in free agent Luka Garza,

Boston Celtics player Luke Kornet will be headed to the San Antonio Spurs after agreeing to a four-year $41 million contract, reports say.

After spending the last four seasons with the Boston Celtics, Luke Kornet is going to join the San Antonio Spurs in free agency.