AAA Sports Memorabilia guarantees all of our signed items are 100% genuine. The item will come with a certificate of authenticity signed by a company director showing the celebrity at the autograph session. We are one of the UK's most trusted brand of official signed sports memorabilia. AAA Sports Memorabilia have held signing sessions with the world's biggest superstars and sportsmen including Lionel Messi, Anthony Joshua, Pele, Steven Gerrard, Gareth Bale, Mike Tyson, Floyd Mayweather and many more.