But why are the pair already reportedly heading for a confrontation?
And which club are hoping to offer United striker Wayne Rooney a route out when the transfer window reopens in January?
Read on to find out more.
According to the report, Abramovich showed his unity with Mata and Torres when he visited the Stamford Bridge team's dressing room after the Champions League defeat to FC Basel.
Mata, Torres and Azpilicueta believe they have not been given a chance to show what they can do under Mourinho so far this season, claim Jones and Kidd.
Mourinho was at his spikey best after the win over Fulham on Saturday evening, with Jason Burt of the Sunday Telegraph reporting how the Chelsea boss rounded on critics of his decision to leave Mata out of the squad as his team went to the top of the Premier League table.
Ferguson has returned to the spotlight this week following a hip operation and offered an olive branch to Rooney after the pair fell out at the end of last season over the striker's future.
However, Moyes maintains that the legendary United boss knows from experience that the former Everton manager should be allowed to manage the team in his way, according to the article.
The Wearside club are the only Premier League club not to have won a game this season. They are bottom of the table with just one point after the 3-0 defeat at West Bromwich Albion on Saturday.
Di Canio approached the away section at The Hawthorns following the defeat in a show of support with the Sunderland fans.
But according to Jones, the Stadium of Light club are lining up a move for former Chelsea and West Brom boss Roberto Di Matteo if results do not improve under the current manager.
And the pressure is sure to increase on Di Canio with Sunderland's next two league matches at home to Liverpool and Manchester United before the next international break.
Sunderland also play host to high-flying League One side Peterborough United in the Capital One Cup this week.
The former Gunners and Netherlands striker is currently working with Frank de Boer at Ajax in a coaching role.
But Shepherd believes Bergkamp will be a strong candidate to replace Wenger in the future if he can overcome a fear of flying which has hampered him since a flight during the 1994 World Cup finals in the United States.
Shepherd claims Bergkamp is also being lined up to replace Liam Brady as Arsenal's head of academy and development.
And the Italian club could use a FIFA loophole to snap up the player for just £400,000, claims the report.
Barcelona midfielder Andres Iniesta has sparked the attention of Manchester City and Manchester United after rejecting a new deal with the La Liga champions, claims Paul Hetherington of the Daily Star Sunday.
Everton midfielder Darron Gibson believes the club are better off without David Moyes and that new manager Roberto Martinez can guide the team into the Champions League, claims Paul Brown of the Daily Star Sunday.