how many times have chelsea won the european cup
Chelsea F.C. Upon winning the 2012–13 UEFA Europa League, Chelsea became the fourth club in history to have won the "European Treble" of European Cup/UEFA Champions League, European Cup Winners' Cup/UEFA Cup Winners' Cup, and UEFA Cup/UEFA Europa League after Juventus, Ajax and Bayern Munich. Chelsea are the first English club to have won all three major UEFA trophies.[179]