The memory remains fresh in the mind of Browns quarterback Brandon Weeden. The furious Philadelphia pass rush. His two fumbles. The lopsided loss to the Eagles less than two weeks ago.

But the preseason is all but over and Weeden realizes that he can benefit from his mistakes if he learns from them. With Philadelphia coming to town Sunday for the season opener, he has a chance to prove to that same team that he has indeed grown.

"I have to take care of the football," he said simply. "I can't put the ball on the ground. We did that too many times, me and the backs. You can't give that team 10 to 17 points as strong as they are offensively and defensively."

Weeden has enough to worry about when he does hang on to the ball, including a nine-wide formation that creates matchup nightmares for the offensive line and blocking backs, as well as standout Eagles cornerbacks Nnamdi Asomugha and Dominquie Rodgers-Cromartie. The Browns were overwhelmed and physically overmatched in the preseason loss to Philadelphia. But Weeden claims his offense boasts some advantages.

"Their two [cornerbacks] are really good," Weeden said. "They're very long, tall guys and their safeties are always in the right place and really smart. But with out athletic tight ends I think we match up really well. Our tight ends could be huge in this game, not only blocking but on one-on-one matchups."

The return of pass-catching tight end Jordan Cameron to practice on Wednesday does give the Browns a bit of depth behind Benjamin Watson.

Return of Richardson: It appears more likely by the day that rookie featured back Trent Richardson will play and start on Sunday. But coming off arthroscopic knee surgery, how does he avoid at least playing a bit tentatively?

"I just don't think about it," he said. "I'm going to just go in there and playing football the way I've been playing it my whole life."

The only problem is that he will likely receive limited reps, which will result in more carries for Montario Hardesty and Brandon Jackson.

"Hopefully there will be no limits on me," Richardson said. "But if there is, I'm going to play every play like it's my last."

Controlling Vick: How does a defense handle a quarterback like Michael Vick, who can turn a broken play into a quick touchdown? Browns strongside linebacker Kaluka Maiava has a strong view.

"You have to play assignment football," he said. "You align where you're supposed to align and stay in your gap. Once you try to cover for somebody else, you're in trouble."

And what if a teammate leaves or is blocked out of his gap?

"It's human nature to cover if you see something, but [Vick] is so explosive that you have to stay. Once you overcompensate for some else against Vick, you know what can happen. We've seen highlight reels of that."

Browns coach Pat Shurmur certainly has.

"Michael Vick is a superstar in this league," he said. "He can have a bad play, a bad play, and then all of a sudden it's a touchdown. I think that's what makes him extremely dangerous. He can do it with his feet from outside the pocket, he throws the ball extremely well. I don't think you can underestimate [that] he can beat you with his arm in the pocket."

Stay dialed in on the Cleveland Browns on Twitter at @CBSSportsNFLCLE throughout the season with on-site updates from CBSSports.com RapidReports correspondent Marty Gitlin.