The banker's favorite player on the football team was...the "cointerback"! 🤑🏈
Explanation: The term "cointerback" is a playful combination of the words "coin" and "quarterback." It's a funny way to suggest that the banker's favorite player was the one who could handle both money (coins) and the important position of quarterback. The use of the money-related term adds a humorous twist. The emoji adds to the cheerfulness and playfulness of the answer.