While the Celtics hold Kornet’s bird rights and could theoretically match any offer the Clippers or Spurs make for the center ...

NBA free agency opens at 6 p.m. Monday, but it doesn't sound like Al Horford will have an answer on his future at that point.

The Celtics will try to retain Al Horford and Luke Kornet in free agency this week. It won't be easy to keep either.