Following on from the successful Downie sisters both winning medals in the European gymnastics championships, Newsround takes a look at some other top sporting siblings.
Venus and Serena Williams
Two of the most successful tennis players of all time. Serena is currently the world number one in women's tennis and current holder of 17 Grand Slam singles titles.
Her older sister Venus holds seven Grand Slam titles. And playing alongside one another they've won 13 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 is 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 but earlier this month announced he's leaving the club. He played 81 times for England, playing in three World Cups.
Younger brother Anton currently plays for Turkish side Antalyaspor, but has played for QPR, Sunderland, and West Ham, as well as England Under 21s.
Jamie and Andy Murray
Current Wimbledon mens champion Andy Murray is the British tennis number one and ranked eighth in the world.
His older brother Jamie is a doubles specialist and won the Wimbledon mixed doubles in 2007.
Yaya and Kolo Touré
Yaya Touré plays midfield for both Manchester City and national team Ivory Coast alongside his elder brother Kolo.
Though for a while the two brothers played together at Man City, Kolo transferred to north west rivals Liverpool last season while Yaya currently seems unclear over his future at City.
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 18-year-old sister Nikita Parris signed for Everton when she was just 14, and has since played for England U17s, U19s and U23s.