rick: pay theouts wide receiver antonio brown left the steelers for the raiders, found a new team then got hit with sexual assault allegations. but that didn't stop him from taking the field for the first time for the pats. and this touchdown you are about to see in a win over the miami dolphins. his accuser, a former trainer is expected to meet with league officials about the alleged assault tomorrow. with the nfl's 100th season tomorrow. neuroscientists with brain guard are trying to develop a better helmet to prevent brain injuries. reporter: the start of a new football seen and heartbreak