"I run with the ones, but that doesn't mean I'm starting," said Brown, who had an interception for a touchdown during drills Sunday.
True freshman Asher Allen, who enrolled early and competed in spring practice, also is taking some snaps with the first team, he said. He'll be ready, he said, if called upon to start the Sept. 2 season-opener.
Flowers, a junior, spoke publicly Sunday for the first time since his suspension came to light, but he declined to identify his transgression.
"I made a mistake," he said. "It was dealt with. The only thing I can do is more forward."
He is worried, he said, that his discipline will allow his young competition a better chance to take his job for good.
"You always should be concerned because it's so competitive," he said, "but if I keep a positive attitude and keep working just as hard as if I was on the No. 1 unit, I'll be fine when I come back.
WEIGHTY MATTER: Fresh off an odd, middle-of-the-career redshirt season and what offensive line coach Neil Callaway calls his best spring practice performance, Fernando Velasco has just one more issue in front of him.
The junior starting split guard is needs to be 310 pounds to perform his best this season. Currently, he is more than 320 pounds.
"Something like that," he said.
That's an improvement from his high of 345 in May 2005.