Romo, 34, had back surgery last December after being injured in a Week 16 game against the Washington Redskins.
“He is 100 percent. He’s 100 percent,” Jones said, via the Fort Worth Star-Telegram. “He’s just being real smart and sensitive about having come off the back surgery.”
Romo, who threw 31 touchdown passes last season, did participate in the team's walk-through on Tuesday. The Cowboys start the regular season against the San Francisco 49ers on Sept. 7.
"We’re really pleased with the way he’s practicing and the work he’s getting done and what he’s doing both on and off the field, but nothing in any way would concern you certainly about his back," Cowboys vice president Stephen Jones said.
- Scooby Axson