There are lot of football players who are crazy when it comes to bet. There were some scandals because of that, in some cases, court had to interact.
One of them is Gianluigi Buffon, who was accused for playing on his own club, Juventus, in time when Juventus was owned by Luigi Moggi, he was accused that he know about Calciopoli.
There are lot of players who play other sports as well. You can bet on Super Bowl at TopBet.
Some players love to play Super Bowl, the most interesting part of NFL season. Also, football players are allowed to do so, while, playing on their own sports could finish with legal actions.
For example, Koby Bryant is a big fan of football, who lived in Milano when he was young.