So, who exactly is using the BackBaller around the world?

Soccer: John Terry, Arsenal, Liverpool, Preston North End, Chelsea, Hull City, Burnley, Stoke City, Manchester City, West Bromwich Albion, Blackpool, Derby County, Northern Ireland

Rugby: Melbourne Rebels, Connacht Rugby, Ospreys, Wasps, Grenoble, Wigan Warriors.

American Football: San Francisco 49ers, Miami Dolphins, Dallas Cowboys.

Tennis: Roger Federer, Martina Hingis.

Cyclists: Eddie Dunbar (Aqua Blue Sport)

Athletics: Mo Farah, Sonia O'Sullivan, Brooke Stratton, Jess Tregove, Anneliese Rubie, Jenny Meadows, Jenna Bromell.

Irish Sports Clubs: Cork GAA, Clare GAA.

Individuals: You?