Pittsburgh Steelers Troy Polomalu signed NFL Wilson full size football w/ proof photo. Proof photo of Troy signing will be included with your purchase along with a COA issued from Southwestconnection-Memorabilia, guaranteeing the item to pass authentication services from PSA/DNA or JSA. Free USPS shipping. www.AutographedwithProof.com is your one stop for autographed collectibles from Pittsburgh sports teams. Check back with us often, as we are always obtaining new items.