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Upside is a highly important aspect for teams to think about when evaluating prospects, especially during this time of the year, and on the latest Eagle Eye in the Sky podcast, Fran Duffy and former offensive lineman Ross Tucker dove into that very subject.

During the conversation, one specific player came up because of his incredible growth over the years. He continued to get better and better as his career went on, reaching and surpassing what some believed would be his full potential.

Who is that player? Tucker's former teammate, current Eagle and future Hall of Fame left tackle Jason Peters.

"Peters is a great example and it would be one that I would bring up," Tucker said. "Yes, he was a 320-pound tight end that blocked a punt, returned it for a touchdown against the Bengals in December. I'll never forget that. The first half of that season, he was on the practice squad. Anybody could have gotten him. Then the second half of the season they bumped him up to the active roster and started to use him as a weapon. They actually had a package for him on offense. The issue though was, even through his second Training Camp, that mental aspect of playing (on the offensive line) did not come real naturally for him. There were enough mental errors that I remember thinking, 'I don't know how you could ever play this guy in a game. There are too many times where he's not blocking the guy he's supposed to block and that other guy who comes free is going to kill the quarterback.'

"I know Tom Donahoe at one time during that second Training Camp said to a teammate of mine, 'It might take another year, but he'll get it. He'll figure it out.' And, he did. They put him in the lineup at right tackle midway through that year, the '05 season, and he really never looked back. He's the most gifted offensive lineman I've ever played with by a lot. I thought he'd go on to have a nice career. I didn't know he'd go on to have this kind of a career, but he was not afraid to work."

Tucker went on to explain how important a player's work ethic is to his upside. Some players may have all the tools, but if they're not willing to put forth the effort, they'll never reach the level of play that some, like Peters, have accomplished.

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