Knowshon Moreno has said that he is still working to improve as a player every week.
The Denver Broncos running back made an impact during the AFC West side's win over the New York Giants last week, rushing for 93 yards and scoring two touchdowns.
The 26-year-old told the team's official website: "I'm still working. I'm still working on little things to get better each week. I feel like a competitor and a pro is supposed to be doing those things, working on those little things and getting better each week.
"[Monday's opponents the Oakland Raiders] do pressure a little bit, but at the same time, we've got to make sure we're on our right keys to make sure we can pick those things up.
"They play tough, they play hard, they play to the whistle. If we don't bring our A-game, they could beat us, so we're definitely going to have to play our A-game."
The Broncos have won both of their NFL games so far this season.
