Key Moments
- Dominic Calvert-Lewin watches a first-half header come back off the post.
- Aaronson puts the hosts ahead with a low finish in the second period.
- Matheus Cunha equalises just three minutes later.
- The Yorkshire side extend their longest top-flight unbeaten run since 2001.
The Red Devils' disappointing recent struggles persisted at Elland Road, but manager the Portuguese tactician had his Brazilian forward to thank for the team avoiding even more damage against Leeds.
The Everton loanee headed a first-half effort against the post for the in-form home team before the American midfielder finished superbly with a driven, 62nd-minute effort.
At that stage, the United boss was under intense scrutiny after his side had been held by bottom-of-the-table Wolves at home earlier in the week.
Nevertheless, against opponents who had two days less to prepare, the forward restored parity three minutes later when he latched onto a through ball from substitute the Dutchman and slid a finish underneath advancing Leeds goalkeeper Lucas Perri.
It was only the Brazilian's fourth goal since his high-profile summer move and came at a time when the manager is without four key attacking players due to a mix of injury and national team commitments.
Not that you would expect Leeds to care about that given their own tight schedule.
The Swiss attacker forced a full length save out of visiting goalkeeper Senne Lammens with a audacious overhead kick, and visiting heads were in hands when Benjamin Sesko, who is struggling to make an impact, turned Zirkzee's cut-back wide from close range.
The goalscorer, who had a goal disallowed for offside much earlier in the match, also fired against a post in the dying moments.
The point prolongs Leeds' unbeaten run to seven games, their longest such streak since over two decades ago, and takes them a significant margin clear of the relegation zone.
For the Manchester United though, it was yet another chance to move into the Champions League places, albeit only for a short time, wasted.
Manchester United Breakdown: The Manager's Side Struggle Again
With the AFCON reaching its knockout phase, Amorim could be forgiven for hoping the involved countries make a swift exit.
Existing injuries to captain Bruno Fernandes and Three Lions star Mason Mount only heightened the impact the unavailability of other attackers is having on the team's options.
It's not that the missing pair are the answer to all of United's problems. After all, they were part of the side that experienced disappointing results earlier in the campaign.
But without them, Amorim has few attacking options.
He evidently does not trust youngster Shea Lacey or the seasoned Joshua Zirkzee, even though the Netherlands forward delivered the assist for the equaliser almost immediately after his introduction as a replacement.
That leaves the Brazilian, who has now scored three goals in five games, and others operating out of their natural positions, alongside Sesko.
On this showing, the expensive frontman looks similar to previous underwhelming signings, lacking in confidence and assurance in front of goal.
His failure to turn home the cross means it is now nine games without a goal for the new signing.
Leeds United Breakdown: Another Step Towards Safety
After thrilling victories in their previous home games, the arrival of their fiercest rivals to home was a bit drab affair.
True, there were moments of typical fervor, but the intimidating edge was not as evident as in other encounters.
The home fans were more preoccupied about their side's struggle to get sustained possession in advanced areas for any prolonged period.
The striker's header that struck the post was an isolated moment of threat in a tight first half.
It still felt as though Leeds were finding it tough when a mistake opened the door for Aaronson.
For a short moment, Leeds' ecstatic fans thought they were about to secure a coveted win against their old foes.
However, there is a wider context for Daniel Farke and Leeds to deal with.
When they endured a difficult run of form earlier in the campaign, many thought about the manager's position.
Instead, he is now overseeing significant progress.
The task is not done yet but gradually, Leeds are getting nearer to securing their survival.
Looking Ahead
Leeds have a Premier League trip to Newcastle in midweek, followed by the start of their domestic cup campaign next weekend. Manchester United face a league trip to Turf Moor before also entering their cup journey with a Old Trafford tie.