A Colorado-based doctor has offered to perform a vasectomy free of charge in exchange for tickets to the AFC championship game.
Dr. Steve Broman is a season-ticket holder and will be attending today's game between the Denver Broncos and the New England Patriots, but is keen to acquire extra seats for his employees.
He told USA Today: "The only people who wouldn't have to pay me in tickets is [Patriots quarterback] Tom Brady, but I'd have to do the operation before the game.
"I had a guy who was ready to pull the trigger, but he said he had only one ticket, so I offered to only do one side. He didn't think that was very funny."
The procedure normally costs in excess of $1,000 (£609).