5) Monaco

Another heavyweights of French football, Monaco have won seven Ligue 1 titles and five Coupe de France honours – however, their trophy cabinet is still empty as far as European honours are concerned.
Their best performance in Europe was in the 2003-04 UEFA Champions League where an incredible run saw them eliminate both Real Madrid and Chelsea en route to the final where they were outclassed by Jose Mourinho's Porto. A decade earlier, Monaco had reached their first ever European final - a Cup Winners Cup title match against Werder Bremen that ended in a 2-0 reverse.
Backed by the money of Russian billionaire Dimitry Rybolovlev, Monaco returned to the top tier of French football after a disastrous 2011 season that ended in relegation and eyed European glory once again. They eliminated Arsenal during a run to the quarter-finals of the Champions league in 2014-15 but were eliminated during the qualifying stages of this year’s edition and even found themselves going out of the Europa League in the group stages behind Tottenham and Anderlecht.