The running back rushed for 950 yards in his rookie season, scoring 11 touchdowns.
The 22-year-old told the Browns' website: "I look at every team as if they have a bull's eye on me, no matter who it is. If every team's bringing their 100% to me, I'm going to bring that much more.
"I know that they gave me their a-game, and if I had a lot of success or very little, I still know that I went out there and did my best.
"It makes me want to work harder. It makes me want to be that guy that always rushes for 100 or 90-plus or is going to get there, and they're going to be like, 'man, I don't want to play against him', or 'this man here is unbelievable'. I want to be that guy that they always remember when it comes time to play them."
The Browns play the Baltimore Ravens on Sunday.