The sources requested anonymity because the matter is confidential. Representatives for Manchester United and Sheikh Jassim did not immediately respond to requests for comment.
A clash between supposedly the two most expensive lineups in history overseen by two of the most decorated coaches will end the phoney war and ignite the Premier League season for real when Manchester United host Manchester City on Saturday.
Chelsea won for the first time in six Premier League matches when they beat relegation-threatened Wolverhampton Wanderers 3-1 at home on Monday.
A round-up of Saturday's matches in the English Premier League.
Inter Milan manager Simone Inzaghi said he barely recognised his side as they fell to a deserved 5-0 defeat at the hands of Paris St Germain in the Champions League final on Saturday.
The German apologised for his conduct after the game and said that he should have dealt with the situation differently.
Three late goals from Amad Diallo dragged a below-par Manchester United to an unlikely 3-1 comeback victory over bottom side Southampton.
IMAGES from the Premier League matches played across England, on Saturday.
Indian club East Bengal produced an utterly dominant show to crush Bangladesh's Bashundhara Kings 4-0 in their AFC Challenge League match in Thimphu on Tuesday.
Thunderstorm could not dampen the rousing victory parade as Manchester City celebrated completing the long-awaited treble.
Images from the English Premier League matches played on Saturday.
Kevin de Bruyne struck twice to inspire Manchester City to a dominant 4-2 win at Crystal Palace on Saturday and move the champions level on points with Liverpool at the top of the Premier League table.
Van Nistelrooy has also gained valuable experience as Assistant Coach for the Netherlands national team under Guus Hiddink.
Manchester City and Arsenal closed in on Premier League leaders Liverpool with contrasting victories on Saturday as Manchester United's bubble was burst by Fulham.
Manchester City came from behind to beat Club Brugge 3-1 and secure their place in the Champions League playoffs
Guardiola will not take his opponents lightly despite Copenhagen, the Danish champions, languishing in sixth place in the league, forcing them to replace manager Jess Thorup with Jacob Neestrup last month.
Twenty-year-old Conor Bradley scored his first goal for Liverpool and claimed two assists as Juergen Klopp's team moved five points clear at the top
With Manchester City mired in a six-game winless slump and facing one of their biggest challenges this season at Liverpool this weekend, manager Pep Guardiola said the onus was on him to prove he can right the ship.
IMAGES from the Premier League matches played on Wednesday.
'If we play at the level of Liverpool or Tottenham we'll do it again.'
Inter Milan are determined to avenge their 2023 Champions League final loss, though manager Simone Inzaghi warned on Friday against letting determination become obsession.
City must win at Spurs or Arsenal will be champions says Guardiola
A stabbing and car attack at a synagogue in Manchester on Yom Kippur has been declared a terrorist incident. Two people are dead, and several others are injured. Police shot the suspect dead.
Real Madrid manager Carlo Ancelotti heaped praise on his striker Kylian Mbappe after he scored a hat-trick in a 3-1 win over Manchester City on Wednesday that took the Champions League holders into the last 16.
Needing victory over last year's runners-up, Basel battled to a 2-1 win to jump ahead of United into second place in Group C and send the English champions into the Europa League. City, running riot at the top of the Premier League, beat already-qualified Bayern Munich 2-0 in their final Group A match but it proved in vain for the competition's newcomers as Napoli won 2-0 at Villarreal to grab second place.
Haaland slotted his side in front after four minutes.
Cole Palmer lives up to his nickname in a scorching Club World Cup final on Sunday, scoring twice in Chelsea's 3-0 win over Paris St Germain on another broiling day at MetLife Stadium.
Manchester City squandered a three-goal lead to draw 3-3 with Feyenoord in the Champions League on Tuesday.
A summary of Saturday's action in the English Premier League.
Manchester United's calamitous week hit rock bottom as Bournemouth famously consigned them to a 2-1 defeat on Sunday and, to rub salt into the wounds, neighbours Manchester City moved back to the top of the English Premier League.
Arsenal's title hopes hit with 2-0 loss to Villa as Man City get boost
Premier League pacesetters Manchester United and Manchester City ground out wins to stay clear at the top while Arsenal remained in dogged pursuit with a 3-0 victory at Birmingham City on Saturday.
Second-half substitute Riyad Mahrez earned Manchester City a 1-0 win at Chelsea on Thursday to move to within five points of leaders Arsenal in the Premier League.
A late penalty from new signing Lukas Nmecha earned promoted Leeds United a hard-fought 1-0 victory over Everton in their first match back in the Premier League.
IMAGES from the Premier League matches played on Sunday
In front of a tournament-high crowd of 81,188 at MetLife Stadium that included US President Donald Trump, Chelsea triumphed to bag the biggest club title.
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.
IMAGES from the UEFA Champions League matches played on Wednesday.
Images from the English Premier League matches that were played on Wednesday.
Kevin De Bruyne netted a stunning equaliser with a rasping low strike to give Manchester City a 1-1 draw against Real Madrid
