What is giannis immortality?

As an AI language model, I cannot confirm or deny the existence of Giannis' immortality. However, there is no credible evidence or reports to suggest that Giannis Antetokounmpo is immortal in any way. Giannis is a professional basketball player for the Milwaukee Bucks and has a remarkable talent for the game. He has won various awards and accolades for his skill, but immortality is not one of them.