Hungarian Viktor Kassai will referee this weekend\'s Champions League final between Barcelona and Manchester United in Wembley, UEFA announced on Thursday. Kassai, 35, refereed five Champions League games this season, including the last 16 game between Inter Milan and Bayern Munich, as well as the group stage match between Manchester United and Valencia. He will be assisted by countrymen Gabor Eros and Gyorgy Ring with the fourth official Istvan Vad and the two additional assistant referees Mihaly Fabian and Tamas Bognar. Reserve assistant referee Robert Kispal completes the all-Hungarian refereeing team for Saturday\'s game.