Warren Moon is the only man in the CFL and NFL Hall of Fame, and he is very interested in the Johnny Manziel's story. TMZ caught up with Moon who said not only is the CFL going to be watching his every move, so will NFL teams.

“They're going to be paying attention the rest of the season,” Moon says.

Moon said they wouldn't just be paying attention to his actions on the field for the Montreal Alouettes. They will also be paying attention to all of his moves off the field.

“He needs to focus all of his energy and all of his comments on football,” Warren says.

“And, stay away from anything that has to do with social stuff because that's what kind of got him in trouble before.”

Moon thinks that if Manziel can keep his head on straight and have success on the field, that he is going to get another shot in the NFL.

Manziel isn't thinking about the NFL at this point and is just happy to be getting first team reps and a chance to be on the football field again.

“It's good to be back in here,” Manziel said, via ESPN.com. “I felt like the thing I've been missing, even over the course of this year and a couple years, is reps. And as you guys have seen the last couple days, a chance to get with the (first-team) and get some reps is what I feel like I really need and what I've talked to a lot of people about.”

Manziel will be making the first start of his CFL career on Friday night against his former team the Hamilton Tiger-Cats.