A crusading sportswriter exposes racketeers involved in paying off fighters to throw their matches.
Alice Fuller
Tracey Browne
Clint De Witt
Richards
Stevens
John De Witt
'Bubbles' Carson
Bob Benton
Duke Fuller
Singer of 'You're a Knock-out' (uncredited)
Secretary (uncredited)
Kramer (uncredited)
Charley (uncredited)