NFL official knows he's only as good as his last call - The San Diego Union-Tribune
Turkish leagues halted after club president punches referee in face | Reuters
Caught on camera: hockey ref punches player, gets tackled by trainer | Globalnews.ca
/cdn.vox-cdn.com/uploads/chorus_image/image/10686087/20130330_gav_aj6_048.0.jpg "Carlos Boozer hit a referee below the belt ... and it was awesome - SBNation.com")
Carlos Boozer hit a referee below the belt ... and it was awesome - SBNation.com
Video: Referee knocked unconscious by player following red card at French rugby league semi-final | Newshub
Rugby player punches ref after being sin binned
Soccer player viciously punches referee after red card | For The Win
Watch: Former WVU Player Turned Ref Punches High School Coach
Turkish football leagues halted after club president punches referee | News24
Player Punches Referee!
Ball hockey player sucker punches ref
Domestic football in Turkey suspended after club president punches referee | beIN SPORTS
Soccer Referee Dies, One Week After Being Felled By Punch : The Two-Way : NPR
Referee dies after being punched by player during amateur Mexican league match - Mirror Online
College Football Player Punches Referee
NHL Ref Punched In Face During Wild vs. Stars Hockey Game
Turkish football leagues suspended after team president punches referee
Junior hockey player gets lifetime ban for punching referee - Yahoo Sports
Angry player punches referee after being sent off in Zimababwe - and the referee fights back! - Irish Mirror Online
Goalkeeper punches referee during match for being yellow carded
Rugby Player Punches The Referee In The Face After Being Sent Off | Triple M
