Claude Giroux Philadelphia Flyers Autographed Adidas Authentic Pro Hockey Jersey. This Philadelphia Flyers Hockey Jersey has been hand signed by Claude Giroux. Mint condition with original factory tags, all numbers and letters are professionally hand-sewn on the jersey which is beautifully signed on the back. To protect your purchase, this item includes a Certificate of Authenticity from AJ Sports World with matching authentication holograms. AJ Sports World guarantees this autograph with a Certificate of Authenticity and tamper resistant hologram from AJ Sports World.