Rooney ended his 13 year reign with Man United in the summer of 2017 and joined Everton where he spent just one season.
Former Manchester United star, Zlatan Ibrahimovic has said that the club's boss, Jose Mourinho, is a born victor, adding that he is confident the manager can transform United's fortunes despite a dismal start to the campaign.
"I think Jose is still someone that I look up to and admire because managers go through tough times", said the current England women's head coach, as quoted by Goal.
"Very, very, very good coach, a team that is always very well organised against especially the teams of the first part of the table, where their manager is very bright on his analysis of the opponent's qualities and to try and stop them. It (the poor run of form) is a bit of everything coming together but Jose is an easy target".
"He took a lot of stick but behind closed doors I said to the players we have be doing better".
The Portuguese boss, 55, said there was a "manhunt" against him after Saturday's win.
Manchester United have already lost four times in all competitions this season, while Mourinho has clashed with club record signing Paul Pogba over the past few weeks.
But he has not played a minute since that penalty defeat to Frank Lampard's side - a total of three matches - to the frustration of many Manchester United supporters.
United are now eighth in the Premier League and already seven points behind the top-three with only eight games played.
Manchester United turned to Mourinho in May 2016 after Louis van Gaal steered the Red Devils to a disappointing fifth-placed finish in the 2015-16 season.
"And I'm furious that we're stood here thinking that there's a report that's broken out...journalists don't break stories of this nature unless they're absolutely certain".
"I think he has the ability to win [the Premier League]" said the Swede, speaking to BetHard in an interview that's been reported by The Mirror.