Answer:
An MLB Superstar.
Explanation and translation:
Because in one part of the text it says the following:
My dad prefers to play baseball in the backyard of our house. With his glove and his bat, he thinks he is one of the superstars of some major league team.
Greetings.
Amigo- is a word used in Spanish for friend, which is supposedly used in English also meaning for friend. However when someone who speaks English uses the word Amigo they use it more like slang. In Spanish Amigo is friend, and compañera/o means more of an acquaintance. There is also colega which means colleague, compadre can also be used as spanish slang for friend. Amigote is another word for Amigo.