Bucs place 450-pound rookie on non-football injury list due to weight issues

"It's just about trying to get him better, to be a healthier player and getting him on the field a little more," head coach Todd Bowles told reporters Wednesday. 

"That's kind of where I'm at right now. He's working at it, and we're working with him. And that's all you can ask right now." 

"We have some things we have in mind with him where we want to see him at, and we'll continue to monitor that and get him to where we think he needs to be and go from there," Bowles said. 

"Stopping while driving," Watson said when asked about bad habits he's tried to shed at his pro day. "My biggest thing is keep going, get to where I need to get. There are stores and a lot of temptations. That's helped me immensely. Don't go inside the gas station. Pay at the pump. Because inside it's snacks and all types of things like that. Don't pull over. If you're on the highway, stay on the highway until you get where you've got to go."

If Watson were to make the 53-man roster and appear in a game, he would make NFL history as the heaviest player to play in the league's history. 

Fox News' Scott Thompson contributed to this report.