KTVU-TV in Oakland reports police are investigating Michael Crabtree for an alleged sexual assault. The TV station got the info from San Francisco P.D., so it's reliably sourced. The allegation couldn't come at a worse time for the 49ers, set to travel to Atlanta for Sunday's NFC Championship game. Crabtree has been the hottest receiver in the NFL, averaging a 7.3/109.5/1 stat line over the past six games. Our early guess is the investigation will not keep Crabtree out of the lineup for Sunday's game.