Tavon Austin show about to begin

Rams rookie receiver Tavon Austin makes his NFL debut Sunday against the Cardinals. We know he'll return punts. We know the Rams want to get him the ball in space. We expect him to line up in the slot. Beyond that, it's a mystery.

"We have a pretty good idea [how we'll use him] but we haven't shown it," coach Jeff Fisher said. "He's not had a lot of production, per se, in the preseason only because it makes sense to hold those type of things for the regular season."

Austin has electifying speed, as he showed on an 81-yard punt return in the third preseason game. NFL Network's Mike Mayock said Austin "might be the most explosive player I've ever seen in my life, from a static start to full speed."

Austin is a risky, exciting Week 1 start. Cautious Fantasy players might want to wait and see how the Rams use him first.