Bengals' Joe Mixon challenges Roger Goodell to coin flip to determine who should pay his Week 18 fine | CBS Sports Headlines Bengals' Joe Mixon challenges Roger Goodell to coin flip to determine who should pay his Week 18 fine The NFL fined Mixon because props are not allowed in … Continue reading Bengals' Joe Mixon challenges Roger Goodell to coin flip to determine who should pay his Week 18 fine