This autographed New York Yankees custom on-field style Adult XL 911 jersey has been personally hand-signed by Robert O'Neill "Never Quit!" inscription.This autograph is certified by PSA/DNA's (Professional Sports Authenticators) In the Presence authentication. That means that a PSA representative was present when this item was signed. It comes with the PSA numbered authentication hologram and Scannable QR Code card which can be verified on the PSA website; psacard.com.Robert J. O'Neill aka "The Operator" is the former U.S. Navy SEAL who fired the shots that killed Osama Bin Laden during the raid on his Abbottabad compound on May 1; 2011; ending the greatest terrorist manhunt in the history of the world.