This from BostonSportsMedia.com
I haven't seen in mentioned in print anywhere, but I'm told that Butch Sterns reported that Paul Pierce and Ricky Davis had to be separated from each other in the runway following the game, they were yelling at each other and became entangled.
If true this could be a minor incident that gets chalked up to frustration (see Blount and Davis from last year). Or it could be the start of the meltdown that every hack scribe in the country predicted for this year's team. Notice how I prefaced that with "If true..."