The deal means Agassi will be exclusively wearing footwear and apparel from the German firm.
He joins wife Steffi Graf who is also signed up to the adidas group.
Said Erich Stamminger, member of the executive board of adidas-Salomon AG responsible for global marketing: "Andre is indisputably one of the biggest athletes of the 21st century and we are excited to support Andre. We will be working closely with him on various initiatives well beyond the sport of tennis.”
Adidas has promised to help Agassi’s charity endeavours.
Tennis ace Andre Agassi has signed a new multi-year endorsement deal with sportswear giant adidas – after 17-years with rival Nike.
