So much for all the drama yesterday about the chance that the Celtics could pull off an 11th hour combination of sign-and-trades which would allow them to sign Kemba Walker and still retain Al Horford. We've already touched on Kyrie having checked out a long time ago, but apparently Al Horford already had his contract in place a couple weeks ago.
According to a league source familiar with negotiations between the two sides, all of the drama prior to Horford’s decision to sign with Philadelphia, as well as much else about that night’s dramatic countdown, was staged.