Hall of Famer Warren Moon said in a radio interview Wednesday that the Canadian Football League is not a viable option for Tim Tebow to prove he can play quarterback, as the former Heisman Trophy winner doesn't throw the ball well enough to play in the league.

Warren Moon, who led the CFL's Edmonton Eskimos to five consecutive Grey Cup titles, doesn't believe the league is a viable option for Tim Tebow. Courtesy of the Canadian Football Hall of Fame and Museum

"You have to be able to throw the ball up there, if anything. They throw the ball a lot. It's only three downs, so the passing game is much more important up there, and there's a lot more field to cover," Moon said in an interview with KILT-AM in Houston.

"If you can't throw the football, it doesn't matter where you play quarterback," he said. "You have to be able to throw it. That's his biggest problem, just being able to complete passes, be an accurate passer. I think he's a really good athlete playing the position, but I don't think that's enough sometimes."

Tebow cleared waivers on Tuesday after being released by the New York Jets. The Montreal Alouettes, who own his CFL rights, have said they would welcome Tebow to the league -- provided he's willing to compete for a job as a backup quarterback.

The CFL has been mentioned as a possible option for Tebow after quarterbacks like Moon, Doug Flutie and Jeff Garcia played the position in Canada and then went on to play in the NFL.

Moon said the difference between Tebow and him and Flutie is, "We knew how to throw the ball.