The St. Louis Rams will likely be without one dynamic rookie as they try and keep up with the explosive New Orleans Saints' offense on the fast turf at the Edward Jones Dome. Wide receiver Tavon Austin is expeted miss the first game of his rookie season due to the ankle injury he suffered in last week's loss, NFL Media Insider Ian Rapoport reported Sunday morning, according to a souce who has spoken with the player. Austin missed practice all week and was seen still in a walking boot on Friday.