Sam Bradford has described the St Louis Rams' performance during their pre-season loss to the Green Bay Packers as "a little shaky".

The NFC West side have lost both of their opening games in preparation for the 2013 NFL season, having been beaten by the Cleveland Browns last week.

The quarterback told the team's official website: "A little shaky, but I think we played pretty well for the most part. Obviously, I'd like to have the throw to Tavon [Austin] down on the goal line back, but I thought we executed pretty well. We moved the ball, we've just got to find a way to put some points up on the board."

Tight end Jared Cook added: "I wish we had a little more time to prove what the offense could do, but I understand it's a stepping stone and we're still building. We've still got two more games left, so we'll get ready for the regular season."

The Rams play the Denver Broncos next week.