sudden death

On the rear window, right side, the jeep displayed the following decal:

back to back

world war champs

Between the two lines of text, an American flag.

All black.

Where does one begin? 

Questions.

• What sport is this?
• Global Gladiators?
• Who are the referees?
• What was the score?
• Any penalties?
• How many "players"?
• How much is a ticket to see an "event"?
• What kind of trophy does the "winner" get?
• When is the next "event"?  
• Can a "player" be disqualified?
• How or why?
• Who is the Commissioner?
• What are the standings?
• Can you be a free agent?
• If there's a tie, does the game end in sudden death?
• Who sells the decal?
• What are the TV ratings?
• Who buys the most air time?
• Are there team mascots?
• Where's the scoreboard?
• Do the "champs" get rings?