There are lot of examples of sport persons who not only succeeded in the field but also succeeded on financial field also.
First Kohli,P.B.Sindhu,Khali,Marry Kom...Lots are examples who are leading wealth life.
With the introduction of many leagues like IPL,Kabddi League,Badm Badminton League players have lots of opportunities.
Only it demands hardworking, determination ... But the beauty of this is one enjoys oneself and earn name & game also.