I can suppose that other famous players are already busy. Or among other players, Suarez is famous for his biting. I dont think that Duelbits are focusing on Brazil only (not because Suarez plays in Brazilian club definitely, because Duelbits are official sponsors of Premier Ligue club), but they are focus on South America in general. Suarez play for Brazil club, he is from Uruguay itself, and Argentina with new president (who cheers for Bitcoin) is near.
Duelbits has a more realistic reason for making Luis Suarez an ambassador. Suarez is a legend with a number of achievements during his career as a football player. I have seen other famous former players who have decided to retire as professional football players collaborating with other casino sites that are still active, such as Robin van Persie.
and what do you mean by biting? I didn't get this part.
The biting in question is a habit that Suarez once carried out when a match was in progress like a zombie, both while strengthening the club and the national team.