There are FIVE Antetokounmpo brothers who play for the National Basketball Association (NBA).
Two of them, Giannis and Thanasis, often play together, but recently they asked their brother Kostas to join them for a game.
They all played for Milwaukee Bucks and it's not often that three of the brothers are under the same roof.
Their team won with an impressive score of 111-104 against the Los Angeles Lakers.
Take a look at some other top sporting siblings!
Becky and Ellie Downie
Becky and Ellie Downie are sisters who are both amazing gymnasts.
They've won loads of medals between them.
They spoke to Ricky about what it's like to train together!
Venus and Serena Williams
Two of the most successful tennis players of all time. Serena has won 23 Grand Slam singles titles.
Her older sister Venus holds seven Grand Slam titles. And playing alongside one another they've won 14 Grand Slam doubles titles too.
They're famous for being big rivals on court but supporting each other when not competing against one another!
Gary and Phil Neville
Gary was England's most capped right back and captained Manchester United for five years. He's now a well-respected football pundit.
Phil followed in his brother's footsteps winning six Premier League titles, three FA Cups and the Champions League with the Red Devils, before moving on to play for Everton in 2005.
Anton and Rio Ferdinand
Rio played centre-back for Manchester United for 12 years. He also played for England, playing in three World Cups.
Younger brother Anton has played for QPR, Sunderland, and West Ham, as well as England Under 21s.
Jamie and Andy Murray
Andy Murray won the Wimbledon men's title twice but has struggled since having hip surgery.
His older brother Jamie is a doubles specialist and won the Wimbledon mixed doubles in 2007.
Yaya and Kolo Touré
Yaya Touré played midfield for both Manchester City and national team Ivory Coast alongside his elder brother Kolo.
Kolo played as a defender for Arsenal, Manchester City, Liverpool, Celtic and the Ivory Coast national team. He is currently a first team coach at Leicester City.
Yaya currently plays for China League One club Qingdao Huanghai.
Nikita Parris and Natasha Jonas
Nikita and Natasha are arguably Liverpool's most famous sporting sisters. At the London 2012 Games, Natasha became the first British female boxer ever to fight in an Olympics.
Her sister Nikita Parris signed for Everton when she was just 14. She plays as a forward for Olympique Lyonnais and the England national team.