Osi Umenyiora autographed footballs are a must have for any New York Giants fan or memorabilia collector. Display this Osi Umenyiora New York Giants Autographed Wilson NFL Super Grip Football - JSA Authentic proudly in your home, office or New York Giants memorabilia man cave. This Osi Umenyiora signature has been authenticated by JSA and will come complete with a Certificate of Authenticity (COA) and matching tamper-evident sticker. Sports Collectibles is the online leader in authentic Osi Umenyiora signed memorabilia. Official NFL Sized Football. Multi-layered lining for consistent shape and durability. Ships inflated. Start your New York Giants signed football collection off right with an authentic Osi Umenyiora autograph. Item ships same day.