Twenty former athletes, including NFL players and Olympians, will reclaim their 'Glory Days' on the new season of NBC’s 'The Biggest Loser.'

Scott Mitchell, who played 12 seasons in the NFL and Damien Woody, a two-time Super Bowl champion, will join Olympic gold medalist Zina Garrison and a mix of former college and high school sports standouts.

Chris Haston/NBC
Chris Haston/NBC

New trainers Jessie Pavelka and Jennifer Widerstrom will join Dolvett Quince to help the contestants transform their lives in the gym.

Bob Harper returns as well but he won't be in the gym. He'll be giving contestants a second chance. Instead of being eliminated, each week contestants will whisked away to 'Comeback Canyon.' There they will be trained by Harper, for the chance to return to the competition and a shot at 'The Biggest Loser' title and $250,000 grand prize.

The new season premieres Thursday, Sept. 11th on NBC at 8pm.

Trailer Choir's Big Vinny not only lost weight on his season of 'The Biggest Loser,' he's got a new lease on life. Trailer Choir is working on new music, releasing 'She's Coming in Hot' and Vinny is training to be a body builder. See how he looks today.

Biggest Loser: Glory Days Preview

'The Biggest Loser' Contestans:

*Jordan Alicandro (Former high school baseball standout; currently regional sales manager), 32, Surrey, BC, Canada
*Rondalee Beardslee (Former high school basketball, football and softball player; currently nursing student), 28, New Lothrop, MI
*Blake Benge (Former high school soccer, track standout; currently student), 18, San Clemente, CA
*Howard “Woody” Carter (Former Arena League football player; currently car salesman), 46, Las Vegas, NV
*Toma Dobrosavljevic (Former high school soccer, football, volleyball, baseball player; currently senior project manager), 33, Addison, IL
*Zina Garrison (Gold medal winning tennis player; currently professional tennis coach), 50, Hyattsville, MD
*Rob Guiry (Former rugby player; currently Head Rugby Coach, 26, Western New England University), Springfield, MA
*Gina Haddon (Former cheerleader; currently make-up artist/photographer), 41, Rowlett, TX
*Lori Harrigan-Mack (Three-time Olympic gold medal winning softball player; currently director of security for a Las Vegas hotel), 44, Las Vegas, NV
*Vanessa Hayden (Former WNBA basketball player; currently a child welfare specialist), 32, Orlando, FL
*Sonya Jones (Former All American softball player; currently PE teacher/coach), 39, Springfield, IL
*Chandra Maple (Former high school softball, basketball standout; currently optometric technician), 26, Dodge City, KS
*Matthew Miller (Former high school football standout; currently business entrepreneur), 31, Grove, OK
*Scott Mitchell (12-year NFL veteran quarterback; currently bill collector), 46, Mapleton, UT
*Emmy Lou Munoz (Former high school softball, volleyball and track and field standout; currently teacher), 32, Woodson, TX
*Mike Murburg (Former Princeton University football player and wrestler; currently an attorney representing the disabled), 58, Darby, FL
*John “JJ” O’Malley (Former Arizona State University football player; currently bouncer), 22, Scottsdale, AZ
*Jackie Pierson (Former high school basketball MVP; currently clinical care coordinator), 36, Pacifica, CA
*Andrea Wilamowski (Former high school cheerleader; currently Vice President of Operations, Detroit Pride Cheerleaders), 43, Grosse Pointe Farms, MI
*Damien Woody (Two-time Super Bowl champion; currently an ESPN analyst), 36, Mendham, NJ