FOXBOROUGH – Multiple reports circulating on the internet, including both Boston newspapers, radio station WEEI and NFL.com, say that Patriots quarterback Tom Brady tore his anterior cruciate ligament earlier today and that he’s through for the season.Brady injured the knee with 7:38 to go in the first quarter when blitzing safety Bernard Pollard of the Kansas CIty Chiefs, who had already been knocked down by Patriots running back Sammy Morris, reached out and hit him on the knee as he was releasing a 28-yard pass to Randy Moss.Moss, who didn’t see the play until after the game, when when he saw the replay on TV, said the hit looked dirty to him. Other teammates, along with coach Bill Belichick weren’t as willing to say anything one way or the other about it.”It looked dirty to me,” said Moss. “I’m not a dirty player,” Moss said. “I don’t even know how to play dirty. But anytime you see something like that, it opens up your eyes.”The Patriots won the game, 17-10, on the strength of a strong running game (a combined 126 yards) and backup quarterback Matt Cassel, who played just well enough to escape a Chiefs team that clearly smelled blood when Brady went down.Brady seemed to be on his way to a banner day as he played in his first game since last February’s Super Bowl loss to the New York Giants (he didn’t play during the preseason). He’d already completed seven out of 11 passes, and had engineered two first-quarter drives – each of which ended with a fumble.The second fumble, by Moss, occurred with 7:38 left in the first quarter as Brady lay sprawling on the field, clutching his left leg. Pollard, who was on all fours, rolled into Brady as he was releasing a long sideline pass to Moss. The contact caused the pass to wobble, and Moss had to come back – out of double coverage – to catch it toward the middle of the field.After he caught it, he slipped, and coughed up the ball as he landed. Although it was ruled a fumble, the bigger concern was Brady, who remained on the ground for almost five minutes before getting up and walking gingerly off the field.”You always hate to see any of your starters go down,” said Moss. “But Brady ? the competitor he is ? the face of the New England Patriots ? that’s doubly tough. But in that instance, everybody has to step up and do their jobs.”One of those “everybodys” was Cassel, who made his bones right away, throwing a perfect pass to Moss on a thirfd-and-11 from New England’s one-yard line that rescued the Patriots from serious trouble. It also propelled the Patriots to their first touchdown of the season (a 10-yard pass to Moss in the back of the end zone) and a 7-0 lead.From there, Cassel played just well enough to allow the Patriots to escape with a victory – a win that wasn’t secured until the last play of the game, when Chiefs backup QB Damon Huard, a one-time backup to Brady in New England, couldn’t connect with KC’s Dwayne Bowe, who had newcomer Deltha O’Neal draped all over him, on a fourth-and-goal from the Patriots’ five-yard line.”I’ll tell you,” said O’Neal, “Those were the longest four plays of my life.”None of the other Patriots was too eager to accuse Pollard of being dirty.”talked to the referee about it,” said center Dan Koppen. “It didn’t seem dirty to me. It’s football. Stuff happens.”Belichick wouldn’t get into it either.”I’d have to see it again,” he said.According to reports, Brady was to have an MRI Monday.