Atlanta Falcons right tackle Mike Johnson suffered a dislocated left ankle and fibula fracture during Tuesday's practice Falcons coach Mike Smith said.

Johnson listed first on the depth chart at his position was injured on a running play Tuesday. Johnson was carted off the practice field and onto an ambulance. He's scheduled to have surgery next week Smith said.

A league source told ESPN NFL Insider Adam Schefter that Johnson is expected to miss the entire season with the injury.

Johnson dropped immediately to ground and rolled over on his back before medical personnel arrived within one minute and put an air cast on his left leg.

The Falcons and Cincinnati Bengals were practicing together for the second straight day. It's the second consecutive significant injury by a Falcons player in the practices between the two teams. On Monday starting linebacker Sean Weatherspoon suffered a a dislocated left finger that resulted in an open wound.