World number one tennis player Victoria Azarenka has signed a multi-year personal endorsement deal with Red Bull.

The 23 year old Belarusian, who’s currently defending her Australian Open title in Melbourne, is the first tennis player to endorse the energy drink brand and said 'I am really excited to be part of the Red Bull family. I've always enjoyed the product and admired how they have worked with their athletes'. Other sports stars with Red Bull deals include golfer Rickie Fowler, NFL player Reggie Bush, and NBA stars Deron Williams and Blake Griffin.