Luka Modric Signed Champions League Soccer Ball (Beckett). Luka Modric Signed Champions League Soccer Ball (Beckett) Adidas Champions League full-size soccer ball has been hand-signed by Luka Modric (Real Madrid). The autograph includes an official Beckett Authentication Services serially-numbered hologram and matching COA for authenticity purposes. Adidas Champions League full-size soccer ball has been hand-signed by Luka Modric (Real Madrid). Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. Vintage Lionel Electric Train Set. Nolan Ryan Signed Tiffany & Co. Crystal Star With Glass Mirror & Wood Display Ca. 2009 World Series 24kt Gold OML Baseball Signed By (8) With Andy Pettitte, Derek. Signed 1982 Topps #21 Bob Bonner RC / Cal Ripken RC / Jeff Schnei.