Giannis, a member of the National Basketball Association's Milwaukee Bucks, is on vacation with his family.
While Burna Boy was singing at the Afro Nation concert in Portugal, Giannis and the Antetokoumpo family got together.
At the forthcoming 2022 European Basketball Championship, Giannis will play for Greece.
Giannis shared pictures of his family with Burna Boy on his official Instagram account.
The pictures were captioned, "Family Ties, G.O.A.T." by the two-time NBA Most Valuable Player winner.
According to the article, Giannis believes Burna Boy to be the greatest of all time.
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Giannis has been named the NBA's Most Valuable Player twice.
Giannis, who guided the Bucks to the NBA title in 2021, will play for Greece in the 2022 European Basketball Championship, which is set for September.