What the joke from Arsenal fans about their favorite team will eliminate Real Madrid in quarter final of Champion League next season 
? Must be realistic Arsenal failure reach the higher round in Champion League last several season and have been long time ago when reaching the final round but defeated by Barcelona.
Even if it looks funny, but it is not impossible that Arsenal can beat Real Madrid in UCL. Sometimes, UCL shows a surprise although it is rather small chance if we considers the quality of both squads and the experience of the teams in UCL. Moreover if we compare the stats of the coaches of Real Madrid and Arsenal, Ancelotti is very clear 1 level above Arteta. TBH, Arsenal may make a surprise but it is unlikely to reach the final UCL for the next season. I don't underestimate Arsenal but I'm trying to be realistic. ? Must be realistic Arsenal failure reach the higher round in Champion League last several season and have been long time ago when reaching the final round but defeated by Barcelona.
Arsenal can perform well in Premier League by pressure Manchester City but lack mentality winning in Champion League how Arsenal never get good result when facing the experienced teams in Champion League. Bayern Munich last season success eliminating Arsenal in quarter final round and I sure if both teams face again next season not any opportunity yet for Arsenal.
Arsenal played well in EPL but they always failed to win the trophy in the last 2 seasons. This fact makes me not really sure to say whether Arsenal has done a great performance in EPL. The problem of Arsenal in EPL is about the consistency, they must waste the points in second half of the season. If they have the same way in UCL, there is no way to win UCL trophy.