Whether it be a doubles team in tennis or as individual boxers in the ring, there are often siblings which reach the highest level of the same sport.
One of the most famous pairings in a sport can be seen in tennis. This is of course the female Grand Slam Champions Serena and Venus Williams.
The sisters have been ranked number one in the world both as a doubles team and as individuals. They have won a staggering 13 Grand Slam women's doubles titles together.
Though there is a form of professional rivalry between the two, and despite Venus slipping to 32 in the world, the sisters have continued to dominate and work off each other brilliantly during their ties.
Another sport which sees several family names is football, with one of the most well-knwon family surnames being Ferdinand.
Manchester United player Rio Ferdinand has a brother called Anton who is an Antalyaspor defender. Their cousins are former England striker Les Ferdinand and current Luton Town loanee Kane Ferdinand.
At the 2014 Sochi Winter Olympics, there was an emotional moment when Justine and Chloe Dufour-Lapointe stepped onto the podium to receive their gold and silver medals respectively.
The Canadian sisters managed to achieve first and second place in the skiing moguls and were very emotional as they held hands and smiled at each other with teary eyes.
This occasion epitomised the delight playing a sport at the top level alongside a family member can bring. Despite having some form of rivalry and having to put in such a big amount of training, the results taking part in sport with a relative can bring are not only extremely fulfilling but incredible to watch.
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