"Big baller" is not a common term to describe a great baseball player. Instead, it's an informal slang term that originated in basketball culture to describe someone who is wealthy and successful. It can also be used to describe someone who is a skilled player in any sport or activity. So, the term "big baller" can be used to describe a great football player, but it's not a widely recognized or commonly used term for this purpose. It's more likely to be used in the context of basketball or as a general slang term for someone who is successful or accomplished.

Hello! That slang term is usually associated with basketball. It would sound weird to use it for other sports (even if they use balls). I hope this helps :)