supporters stretches as far back as the 1909 Scottish Cup Final, which was contested by the two sides. The tie went to a replay after the first match ended in a 2–2 draw. The replayed match also ended in a draw (1–1) after 90 minutes. Despite public expectations, no extra time was played and in response thousands of supporters from both sides invaded the pitch to vent their frustration, causing £1,000 of damage (a substantial sum in the 1900s, equivalent to around £120,000 today). Both clubs petitioned the Scottish Football Association to have the tie abandoned and their demands were met when officials decided the match would not be replayed. The cup and all medals were withheld for that year. Both sets of fans fought an on-pitch battle in the aftermath of Celtic's 1–0 victory in the 1980 Scottish Cup Final at Hampden Park. In January 1988, Mark Walters became the first black footballer to play for Rangers; he made his debut in an Old Firm game at Parkhead and was subjected to racial taunts from Celtic fans, some of whom also threw bananas towards the pitch. There was serious fan disorder during an Old Firm match played in May 1999 at Celtic Park; missiles were thrown by Celtic fans, including one which struck referee Hugh Dallas, who needed medical treatment. Rangers are renowned for their chanting of the sectarian song 'The Billy Boys' during games. Sectarianism Both clubs have taken measures to reduce sectarianism. In 1996 Celtic launched their Bhoys Against Bigotry campaign, later followed by Youth Against Bigotry to "educate the young on having ... respect for all aspects of the community — all races, all colours, all creeds". Celtic partnered with Rangers to form the 'Old Firm Alliance' in 2005, an initiative aimed at educating children from across Glasgow about issues like healthy eating and fitness, as well as awareness of anti-social behaviour, sectarianism and racism. In March 2008, UEFA investigated Celtic fans for alleged sectarian singing at a match against Barcelona. However the case was dropped before the end of the month due to a lack of evidence. In November 2011, Celtic were again under investigation by UEFA for alleged offensive chants from their fans during their Europa League game against Rennes. On this occasion UEFA found the Celtic fans to have been guilty of "illicit chanting" and fined the club £12,700. In April 2012, the