If you are not aware of this term sports betting, then let me introduce it to you. It is actually a way of predicting sports outcomes. Most of the cricketers who are not loyal to their teams for some money bet with people that pay them to lose their team. This is what sports betting is.
It varies according to culture, in the past, there are a lot of cases that came in front of the public where cricketers bet. You put a bet on the given match and then if you win that match you are going to receive a large amount of money. It is actually a way of earning black money.
It might a bad thing, but it will be helpful for the countrys economy. Legalizing sports betting will create a huge difference in revenue.
https://www.theperspective.com/debates/sports-betting-legal/