Pep Guardiola admits the Eurovision Song Contest has given him a headache as he looks to keep Manchester City’s treble bid on track.The Premier League leaders face a crucial trip to relegation-threatened Everton on Sunday, three days before they host Real Madrid in the second leg of their Champions League semi-final.City boss Guardiola would have preferred the Goodison Park clash to be played on Saturday but, with Eurovision taking place in Liverpool city centre that day, that could not be sanctioned for security reasons.Click here to sign up for our newsletters.