JACKSONVILLE, Fla. -- Taven Bryan's main goal for his professional debut was to get a feel for what it's like playing in the NFL.

He might get a feel for what it's like to write a big check too.

The Jacksonville Jaguars' first-round pick played 35 snaps in Saturday's 17-6 victory against the Atlanta Falcons at TIAA Bank Field and finished with one tackle, one pass breakup and one penalty. That was a roughing the passer call late in the fourth quarter that could result in a fine from the league office.

Other than that, Bryan was pleased with his first NFL game. He missed the Jaguars' first two preseason games because of an abdominal injury.

"I just wanted to come out and feel the speed of the game, and knocking off the rust was probably the biggest thing for me," said Bryan, whom the Jaguars selected 29th overall. "We'll have some tape, and I'll see what I need to fix and where I need to go from here."

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Bryan played at end and tackle against the Falcons, and he'll be getting reps at those positions during the regular season, as well. He spent most of his time in training camp working behind end Calais Campbell, who said this month that Bryan is the best rookie he has had as a teammate.

Campbell liked what he saw from Bryan, who knocked a pass down at the line of scrimmage a few plays before his penalty.

"He did what we asked of him," Campbell said. "We asked him to go out there and play with his hands, be technically sound and do his job; and he went out there and played physical, put offensive linemen on the ground, got off blocks, threw his body into the running back and made some really good plays. I was impressed with what he did."

Bryan was playing inside when he knocked the pass down. That's where he played at Florida, and he said he's still adjusting to playing end. Doing it in a game for the first time felt a bit surreal, he explained.

"I'm more comfortable and used to playing a 3-technique [tackle], so I really enjoy it when I do get a chance to go down there," Bryan said. "But I definitely need to get used to playing end."

Jaguars coach Doug Marrone said Bryan flashed some of the skills that the Jaguars loved when they scouted him.

"He showed his power; he showed his strength," Marrone said. "He was up on his feet and got involved on some plays. It is a pretty good progression of a guy that really hasn't practiced or played. I think it's difficult. I think he will just get better as he keeps playing."

Marrone wasn't pleased with the penalty, though. The NFL might not be, either. Campbell sympathized but warned the rookie to be prepared to have to part with some of his $5.5 million signing bonus.

"When I was a rookie, I got a roughing the passer [penalty]. It was like a $10,000 fine," Campbell said. "I appealed it and it went down to $5,000. I told him his'll be a little more expensive, but it happens."