Football's congested schedule is not just risking players' health but it is "killing the product", says Professional Footballers' Association chief executive Maheta Molango
But Molango says the game can learn from American football.
He added that Manchester City midfielder Kevin de Bruyne going off injured in club football's biggest game is "surely not what we want to see".
City lost De Bruyne to a hamstring injury early in last season's Champions League final before edging a 1-0 win over Inter Milan in their 61st game of the season.
Speaking at the Financial Times Business of Football Summit, Molango said: "The Champions League final is supposed to be our Super Bowl.