Celtic became the first team in Britain to win a quadruple but England’s dominant teams have always fallen short
The history of the quadruple in England is a short one. No one has achieved it, indifference to the League Cup being a frequent and early stumbling block, and the only two credible attempts have been Mancunian ones 10 years apart. Only one English team have won a true treble – defined as the domestic league, major cup competition and European Cup so as to be on an equal footing with all the other leagues – and though there have been lesser threesomes over the years a clean sweep of four trophies was more improbable scenario than realistic ambition until Manchester City began chipping away at everyone’s certainties.
Source: Football News
Link : Quadruple is on for Manchester City as the impossible becomes a reality | Paul Wilson