Canty was a game-time decision and was expected to play, barring a setback. Meanwhile, the Ravens scratched cornerback Lardarius Webb.
Webb only played four snaps against the Cleveland Browns in his first game of the season before being pulled. He was ineffective and immobile against the Browns last week.
Webb is healthy, according to a source, with no setbacks, but he has to regain strength, flexibility and mobility after such a long period of inactivity. The Ravens want to give it another shot later, possibly as soon as next week if Webb's back responds.
"Just keep going, keep pushing, that's all they want me to do," Webb said Friday. "Keep fighting and eventually get more plays on the field. I didn't play any preseason games. They want me to feel the field. They want to me to get into the game and not just be thrown out there even though I'm a veteran. I respect them for looking out for me."
Smith participated fully Thursday and Friday despite knee and ankle injuries. Smith told The Baltimore Sun that he feels fine and is looking forward to matching up against Panthers rookie Kelvin Benjamin, a 6-foot-5, 240-pound wide receiver with speed and excellent leaping ability.
"Of course I am, I'm ready to play and be the best corner on Sunday," Smith said. "Benjamin is a big kid. He has a great catch radius and has great hands. I feel fine. Missing one day was just a precautionary day."
The Ravens had previously scratched rookie defensive tackle Timmy Jernigan and left tackle Eugene Monroe.
Jernigan has a meniscus injury and did not practice all week. He's hoping to avoid surgery Monroe had arthroscopic knee surgery and could be out for as long as a month.
The Ravens also scratched wide receiver Michael Campanaro (River Hill), inside linebacker Arthur Brown, rookie guard John Urschel and new defensive lineman Lawrence Guy.
The Panthers scratched quarterback Joe Webb, running back Jonathan Stewart, safety Tre Boston, running back Fozzy Whittaker, linebacker Thomas Davis, offensive lineman Andrew Norwell and tight end Brandon Williams.