Mohamed Salah had a remarkable first season with Liverpool, scoring 44 goals in all competitions and helping the club reach the Champions League final
City were due to open their season against Aston Villa and United against Burnley but those games will be moved.
A vote will take place at the Premier League shareholders meeting on September 7 and clubs from the lower divisions in the English Football League are set to follow suit next month.
Last term, stung by City's woeful performance the previous season in a 3-0 Champions League loss at Anfield, Guardiola adopted a cautious approach in a goalless draw.
Roberto Firmino scored twice as Liverpool boosted their hopes of Champions League football next season
Mauricio Pochettino has left his job as Chelsea manager by mutual consent, the Premier League side announced on Tuesday.
Late goals by Mohamed Salah and Jordan Henderson earned Liverpool a crucial 3-1 victory at Southampton to move them back to the top of the Premier League on Friday.
Juergen Klopp named Philippe Coutinho as captain and the Brazilian curled a sublime effort into the top corner with the home side's first real attacking foray after just six minutes.
IMAGES from the Premier League matches played on Sunday
Arsenal's Aubameyang compared to Henry after his derby double
Ajax wary of attacking Napoli.
Liverpool reached the Champions League semi-finals for the first time in 10 years as Mohamed Salah and Roberto Firmino struck decisive blows to secure a 2-1 win over Manchester City on Tuesday that completed a 5-1 aggregate victory.
Liverpool's Slot not nervous ahead of Anfield debut
Arjen Robben scored two first-half goals to give Bundesliga leaders and titleholders Bayern Munich a predictable 2-0 win at home to bottom club Eintracht Braunschweig on Saturday.
Manchester United bolstered their squad with a flurry of transfer deadline day signings, Manchester City and Liverpool also splashed out while ambitious Brighton & Hove Albion sealed an audacious loan deal for Barcelona's Ansu Fati on Friday.
Real Madrid said their participation in the tournament was never in question.
The brilliance of Chelsea's Eden Hazard ended Liverpool's 100 percent start to the season as Maurizio Sarri's side enjoyed a 2-1 win at Anfield in the League Cup third round on Wednesday.
Goals rained in for Manchester City and Manchester United but Juergen Klopp's first game as Liverpool manager was solid rather than spectacular as they drew 0-0 at Tottenham Hotspur in the Premier League.
Klopp fined by FA for referee comments after West Ham draw
Liverpool's first match since being confirmed as champions is at City's stadium and Pep Guardiola said his players would pay tribute to Juergen Klopp's title-winning side.
Liverpool won an absorbing English FA Cup final on Saturday as they prevailed 6-5 in a penalty shootout after the Wembley showpiece somehow ended 0-0 after extra time.
News of all that's transpired on and off the football field
What makes Juergen Klopp's side such an unstoppable force?
Thiago, 29, won the Bundesliga title in each of his seven seasons with Bayern and played in last month's Champions League final victory over Paris St Germain.
Liverpool kicked off the new year three points clear atop the English Premier League standings with a 4-2 victory over Newcastle United.
Liverpool manager Juergen Klopp said elite-level coaches cannot give guarantees about their touchline behaviour due to the pressure that comes with being involved in the Premier League but he urged his counterparts to set higher standards.
Two goals from Marco Reus spurred Borussia Dortmund to lift the German Super Cup with a 4-2 win over Champions League and Bundesliga holders Bayern Munich on Saturday.
Christian Benteke wants to stay at Liverpool but is reluctant to commit his future to the Anfield club unless he gets more game time under manager Juergen Klopp. The former Aston Villa striker scored nine league goals during a mixed first season at the Merseyside club but made 15 of his 29 Premier League appearances from the bench. Benteke was signed by Klopp's predecessor, Brendan Rodgers, for 32.5 million pounds ($47.00 million) and under the German found himself behind Daniel Sturridge, Divock Origi and Roberto Firmino in the pecking order.
Liverpool's Egypt forward Mohamed Salah could miss next month's World Cup in Russia after suffering a suspected shoulder injury in Saturday's 3-1 Champions League final defeat by Real Madrid, his club manager Juergen Klopp has said.
Colombian super-sub Jhon Duran scored two late goals as Aston Villa salvaged a 3-3 home draw with Liverpool.
Defender Kolo Toure believes Liverpool can recover from Sunday's painful League Cup final shootout defeat against Manchester City at Wembley and rescue their season by winning the Europa League. Juergen Klopp's side, seeking their first trophy in four years, face bitter rivals Manchester United this month in the last-16 of the continent's second tier competition. "You have to learn to lose sometimes before you win. We learn as a team together. The Europa League can save the season and the Premier League is not over yet," Toure told British media. Liverpool, who are ninth in the table, can quickly avenge Sunday's defeat when they host fourth-placed City in the Premier League on Wednesday. Goalkeeper Simon Mignolet said it was important for the five-times European champions to bounce back quickly from their Wembley disappointment.
IMAGES from the Premier League matches played on Wednesday.
The 58-year-old pointed to the 26-point gap in the Premier League table between runners-up Liverpool and his fourth-placed former team as evidence of a massive gulf between the sides.
A summary of Sunday's action in the Premier League.
Liverpool manager Juergen Klopp has a midfield conundrum and his Tottenham counterpart Mauricio Pochettino must decide whether Harry Kane is ready for action as both bosses face selection dilemmas for Saturday's Champions League final.
News of all that's transpired on and off the football field
Cody Gakpo scored his first goal for the club as they halted a dismal run
'I think it's a bit clever from him to get the attention of the referee but I will just play my football like I'm always doing'
'Porto are a really, really good football team. We have to play at our limit 100 percent'
Champions Liverpool are five points clear at the top of the Premier League after a 7-0 away hammering of Crystal Palace while Arsenal's troubles continued with a 2-1 defeat at second-placed Everton on Saturday.
