We know New England Patriots coach Bill Belichick doesn't think much of CBS Sports insider Charley Casserly's reportage.
Belichick belittled Casserly in January over a report Tom Brady was playing with broken ribs, asking rhetorically "Who's been more wrong than Charley Casserly?" Belichick added Casserly was "100 percent wrong."
Brady's personal throwing coach, Tom Martinez, told me in July that Brady played with three broken ribs and a broken finger.
This week, Belichick dismissed reports about Randy Moss being a problem behind the scenes. Belichick insisted the trade had nothing to do with discipline issues or contractual issues, but the coach declined to provide the supposed reason.
On Sunday, Casserly delivered another report Belichick won't like. Casserly said a heated argument between Brady and Moss added to tensions that precipitated Wednesday's trade to the Minnesota Vikings.
Their squabble reportedly was over -- get this -- hair.
"The week before Moss was traded, Tom Brady and Randy Moss went toe-to-toe and had to be separated when it happened," Casserly said on "The NFL Today" pregame show.
"One of Brady's problems with Moss was his behavior as a Patriot. Then one of the things that was overheard was Brady telling Moss he needed to cut his beard. Moss countered 'You need to get your haircut. You look like a girl.' Obviously. Brady had problems with Moss' behavior."
ESPNBoston.com's Mike Reiss reported quarterbacks coach Bill O'Brien and Moss got into verbal altercation at halftime of Monday night's victory over the Miami Dolphins.
Boston Herald reporter Karen Guregian and former Patriots receiver Troy Brown both passed along a story Belichick tried to approach Moss on the team's flight after the game, but Moss turned him away. Belichick called those reports "a total fabrication."