The good news for the Kansas City Chiefs as they prepare for the start of the NFL regular season is that their starting quarterback is back at practice. The bad news is that they still don’t know when hell be able to play. Matt Cassel returned to the Chiefs practice field on Monday for the first time since he injured his left knee in a NFL preseason game on August 29th. Still, there’s been no confirmation from either he or the team as to when hell return to action. It would be an ironic twist if Cassel lost significant time due to injury, as it was a knee injury to Tom Brady while in New England that first brought him mainstream attention