 Complete the following phrase:  Arsenal also hosted the Emirates Cup in the Emirates Stadium for the first time since 2011 after the 2012 edition was cancelled due to the London 2012 Summer Olympics causing infrastructure problems in London. It was confirmed on 15 May 2013 that Turkish Süper Lig side, Galatasaray and Serie A side Napoli were to Arsenals opponents although this did not receive a good reception from Arsenal fans after the 2000 UEFA Cup Final riots where Arsenal and Galatasaray fans clashed in Copenhagen, Denmark before the 