The dynasty will only be built on European success, though, and after the quarter-final exit to Liverpool, Manchester City's owners, who want a gilded continental powerhouse to match United's global lustre, will demand it and back those demands with huge funding.
The following is a look back on key moments in the thrilling Premier League title race, won by Manchester City on Sunday:
Images from Wednesday's action in the UEFA Champions League.
Real Madrid got their Champions League title defence off to a strong start on Wednesday by convincingly beating AS Roma 3-0 at home with goals from Isco, Gareth Bale and a stoppage-time strike from returning striker Mariano Diaz.
Manchester City had to battle back from behind to earn a 1-1 draw against Premier League newcomers Wolverhampton Wanderers who gave the champions a real test at Molineux on Saturday.
A summary of Sunday's Premier League matches
Images from the English Premier League matches played on Saturday.
A summary of Tuesday's matches in the UEFA Champions League.
Images from the English Premier League matches played on Saturday
Gabriel Jesus came off the bench to secure Manchester City a 1-0 English Premier League victory at Leicester City after yet another penalty miss by Pep Guardiola's side on Saturday. Chelsea's Olivier Giroud and Marcos Alonso returned to the starting lineup to stunning effect by grabbing a goal apiece in a crucial 2-1 home win over Tottenham Hotspur in the battle between the London rivals for fourth place.
A summary of sports events and sports persons, who made news on Thursday.
News of all that's transpired on and off the football field
Luka Modric pulled one back for Zinedine Zidane's shellshocked side with a brilliant strike from distance early in the second half before substitute Vinicius Jr reduced the deficit to one goal.
Olympiakos Piraeus battled back from a two-goal deficit to earn a 2-2 home draw with last year's runners-up Tottenham Hotspur in their Champions League Group B opener.
World champions Germany survived a late scare to see off Saudi Arabia 2-1 on Friday and claim a first victory this year, putting a five-game winless run behind them as they finalised their World Cup preparations.
Premier League leaders Manchester City turned on the style with a 3-1 win over Manchester United in their derby clash, on Sunday, leaving Pep Guardiola's unbeaten side two points clear of Liverpool.
In an exciting weekend for football lovers, Cristiano Ronaldo and Lionel Messi continued their extraordinary double act, both scoring hat-tricks as Real Madrid and Barcelona maintained their battle for supremacy at the top of La Liga. Chelsea's unbeaten start to the Premier League season ended with a dramatic 2-1 defeat at Newcastle United on Saturday but no-one can get the better of Bayern Munich, who marched on in the Bundesliga with a 1-0 win over Bayer Leverkusen. We present a summary of events in photos.
Sanchez, 28, is currently in the final year of his contract. He has been linked with a move to Paris St Germain in the current transfer window.
Manchester City's all-conquering season reached new peaks as Sergio Aguero became the club's all-time top scorer with a decisive goal in a thrilling 4-2 victory at Napoli that put them into the Champions League last 16 on Wednesday.
Neymar Jr and Kylian Mbappe starred in PSG's win as they topped group A after thrashing Galatasaray 5-0. Juventus, who have already qualified for the last 16 of the Champions League, pumped in two goals to oust Leverkusen from the tournament, while Gabriel Jesus netted a hat-trick in Manchester City's 4-1 thumping of Dinamo Zagreb. Here are Images from the Champions League matches played on Wednesday
Chelsea came from behind to secure a 3-1 win at Manchester City and forge further clear at the top of the Premier League as a dramatic top-of-the-table clash ended in a mass brawl and two City players being sent off on Saturday.
Images from the UEFA Champions League matches played on Tuesday.
Images from Champions League matches played across Europe on Tuesday
Barcelona battled back from a goal down and scored twice in the second half to overcome hosts Borussia Moenchengladbach 2-1 in their Champions League Group C match on Wednesday despite the absence of the injured Lionel Messi.
Manchester City's Sergio Aguero scored a hat-trick as coach Pep Guardiola maintained his 100 per cent record at the club with a commanding 4-0 victory against Borussia Moenchengladbach in their rearranged Champions League Group C opener on Wednesday.
Schuerrle hits treble for the world champs; Lewandowski helps Poland thrash Georgia