After the match, I asked Mourinho about his reaction to the atmosphere.
The disarray at United is nuanced and complex, with many factors and no single person responsible for the club's five-year drift, but Saturday's victory really had a feeling of giving Mourinho a lifeline, even if the club claimed his position was never going to be decided at the weekend, as a Friday night report in the Daily Mirror claimed. They are a side United should be beating routinely. Mauricio Pochettino is one of the top managers in world football and would be welcomed with open arms at Old Trafford, if they could prize him away from Spurs.
Former Premier League star Jamie Redknapp believes Mourinho is still in the firing line despite the win over Newcastle.
The second half saw the French midfielder play one of his best matches of the season, before Alexis Sanchez claimed a dramatic late victor.
Mourinho is expected to meet the Manchester United hierarchy in London this week as the club continue to deliberate on whether to sack or support him.
"To their credit, United rallied to come back and win".
Rooney, who plays for MLS side D.C. United, spent 13 seasons at Manchester United, including the 2016-17 season under Mourinho. United return to the Premier League action on 20 October against Chelsea at Stamford Bridge; three days later they host Juventus in the Champions League. His stock has never been lower as a United player; he's one of many who needs a change in fortunes.
In fact, the only time United have lived up to their swashbuckling, attack-first reputation over the last 10 months is when they've found themselves down two early - against Crystal Palace, Manchester City and Newcastle - and had no choice but to throw everything at their opponents.