The Biggest Loser Season 16 Episode 9 welcomed some big names to the NBC reality show, especially familiar to football fans across the nation.

Former Pro Bowlers Michael Irvin (Dallas Cowboys), Donald Driver (Green Bay Packers) and Willie McGinest (New England Patriots) visited the ranch, where they took part in a football challenge and offer the contestants training advice.

And the contestants listed closely because these are ex-athletes who very much know what they're talking about.