Morning Extra - Who's to blame for the Rangers violence in Manchester?

42 people have been arrested after Rangers fans clashed with riot police in Manchester. The violence came after a big screen in the city centre broke down during the team's Uefa Cup final clash with Zenit St Petersburg. Were the police heavy-handed? Or were the fans simply out-of-order? Plus, your tributes to Celtic legend Tommy Burns, who has died at the age of 51. Graham Stewart takes your calls, texts and emails.