City were due to open their season against Aston Villa and United against Burnley but those games will be moved.
Images from the English Premier League matches played on Saturday.
Liverpool strolled to a 2-0 victory over Brentford, while Newcastle drew 1-1 at Bournemouth.
Tottenham Hotspur sacked coach Andre Villas-Boas on Monday, a day after the London club were thrashed 5-0 at home by Liverpool, the Premier League club said on their website (www.tottenhamhotspur.com).
Andre Villas-Boas rarely had a good relationship with the British press and their writings over the Portuguese's handling of recent losses of Tottenham Hotspur could have gone against him.
Peter Crouch grabbed a late equaliser to earn Liverpool a 2-2 draw with Aston Villa in the English Premier League.
Aston Villa took full advantage of the absence of the other Premier League high-fliers on Saturday, winning 1-0 at West Ham United to climb to third. A deflected James Milner shot 12 minutes from time gave Villa 34 points from 18 games and pushed them above Manchester United (32).
Aston Villa were crushed 6-1 by Southampton but joined Leicester City in celebrating Premier League survival on Saturday while Steven Gerrard's farewell party was spoiled as Liverpool lost 3-1 to Crystal Palace.
Obafemi Martins scored twice as Newcastle United produced a stirring second-half performance to beat Aston Villa 2-0 on Monday to move off the bottom of the Premier League.
Liverpool's English Premier League title winning captain Jordan Henderson was named England's Footballer of the Year on Friday in the annual vote of the Football Writers' Association (FWA).
IMAGES from the UEFA Champions League matches played on Wednesday.
'If Liverpool bought me then they know how to use me. That's why I came here -- I'll show I can play with my feet too'
Liverpool's 1-0 defeat by Aston Villa on Saturday was more than an early season setback - it raised the question of whether they have the strength in depth to cope with the dual challenge ahead of them this term.
Manager Rafael Benitez confirmed Liverpool are weighing up bids from Aston Villa and Olympique Lyon for Milan Baros.
IMAGES from the Premier League matches played on Sunday.
Liverpool's bandwagon rolled on as they crushed Merseyside rivals Everton 5-2
A Kamil Zayatte own goal two minutes from time gave Aston Villa a 1-0 win at Hull City on Tuesday and lifted them to fourth place in the Premier League.
Aston Villa have sacked manager Tim Sherwood, the Premier League club announced on Sunday.
Goals from Steve Sidwell and Dimitar Berbatov helped Fulham end a six-match losing streak with a 2-0 victory over Aston Villa on Sunday.
Images from the English Premier League matches played on Saturday
A summary of Saturday's action in the English Premier League.
Aston Villa moved into the thick of a four-way battle for fourth place in the Premier League with a 2-1 win at struggling Wigan Athletic on Tuesday.
Big-spending Manchester City fought back to draw 1-1 at Aston Villa on Monday and move ahead of Arsenal and Liverpool into fourth place in the Premier League table.
IMAGES from the English Premier League matches played on Wednesday.
Manchester United manager Alex Ferguson dismissed Chelsea's Premier League title hopes on Wednesday.
'If we play at the level of Liverpool or Tottenham we'll do it again.'
Aston Villa blew a chance to go eight points clear of Arsenal in the race for England's fourth Champions League berth Sunday after conceding two late goals against relegation-threatened Stoke City. The 2-2 draw, with Stoke cancelling out their hosts' 2-0 lead in the final three minutes, left fourth-placed Villa six points ahead of Arsenal and three adrift of second-placed Chelsea and Liverpool in the Premier League.
Phil Foden struck twice as Manchester City stepped up their bid for a fourth Premier League crown in a row with a ruthless 4-0 victory at Brighton & Hove Albion on Thursday.
Imperious Liverpool extended their Premier League home winning streak against Arsenal to six on Saturday with an easy 4-0 victory that lifted them to second in the table.
Liverpool, Chelsea and Manchester United celebrated the festive season with victories on Friday while Arsenal, the other member of the 'big four', squandered a 2-0 lead to draw 2-2 at Aston Villa. Liverpool beat Bolton Wanderers 3-0 at Anfield with Robbie Keane scoring twice to give the leaders 42 points, one ahead of Chelsea as the Premier League season reached the halfway point.
Real Madrid fought back from two goals down as Vinicius Jr grabbed a hat-trick in a thrilling 5-2 win over visitors Borussia Dortmund in the Champions League.
The race for Premier League places in next season's Europa League warmed up on Sunday when Aston Villa and Everton fought out a thrilling 3-3 draw and Fulham came from behind to win 3-1 at Manchester City.
A round-up of Saturday's action in the Premier League.
European champions Liverpool are second in their Champions League group - a point behind Napoli - and Klopp's side host Genk at Anfield.
Manchester City defender John Stones headed a controversial stoppage-time winner in a 2-1 victory at Wolverhampton Wanderers on Sunday that took them top of the Premier League and set a club record of 31 league games unbeaten.
Daniel Sturridge's return from injury to the starting line-up is a massive bonus and will bring the 'fear factor' back to Liverpool, captain Jordan Henderson has said.
It is not yet clear how Liverpool will split their squad and whether Klopp will be present at both games.
Liverpool forward Sadio Mane scored his 100th goal for the club to help secure a 3-0 victory over lively Crystal Palace in the Premier League at Anfield on Saturday.
Michael Owen's first-half double helped Liverpool crush Blackburn Rovers 4-0 and reclaim fourth place in the English premier league.
Images from the English Premier League matches played on Saturday
