Getty ImagesMark DoyleFrom Barcelona to Mourinho: The 10 biggest disappointments of the Champions League in 2017-18Champions LeagueBayern MunichReal MadridOpinionBarcelonaManchester UnitedJuventusManchester CitySSC NapoliChelseaRomaLiverpoolAhead of Saturday's final between Real Madrid and Liverpool in Kiev, Goal looks back at the most disappointing aspects of this season's tournamentArticle continues below