Tottenham 2-2 Man United ANALYSIS: The glaring issue Ruben Amorim's 'tired' squad must fix - and what the club must address soon amid Casemiro's classy run of form

Matthijs de Ligt's header deep into injury-time salvaged a draw for Manchester United at Tottenham and extended their unbeaten run to five games.

Bryan Mbeumo put Ruben Amorim's side in front, but goals from Mathys Tel and Richarlison looked to have handed Spurs a fifth straight win over United before De Ligt struck in the 96th minute.

Daily Mail Sport looks at the key issues for United from a rollercoaster game at the Tottenham Hotspur Stadium...

Sesko woe

Amorim admitted on the eve of this game that Benjamin Sesko was struggling to live up to expectations and handle the criticism from pundits and ex-United players, and it went from bad to worse for the big Slovenian.

Dropped to the bench so Matheus Cunha could play through the middle with Mbeumo and Amad Diallo in the No.10 positions in Amorim's 3-4-2-1 system, Sesko came on for Noussair Mazraoui as part of a reshuffle in the 58th minute but lasted just half an hour before limping off with a knee injury that left United with 10 men for a dramatic finale.

During his time on the pitch, United's £73.7million summer signing wasted the two chances that came his way and looked short on confidence again. Asked if that was the case, Amorim said: 'That is not the biggest concern now. That happened in the same way that he was not scoring and then he scored two goals in the next two games (against Brentford and Sunderland) so that happens, especially with a striker.

'I'm more concerned with an injury because it's in the knee and I don't know. We need Ben to be a better team.'

United will hope Sesko's injury isn't too serious, but it's clear he hasn't settled as well at the club as other summer signings Mbeumo, Cunha and goalkeeper Senne Lammens.

Double trouble

For the second week in a row, United led away from home and seemed to be in control of the game, but then conceded twice and had to rely on a late equaliser to salvage a point. In fact, they became the first Premier League team since Manchester City in 2012 to draw in game in these circumstances in consecutive matches.

At Forest last weekend, United let in two goals shortly after half-time before Amad Diallo equalised in the 81st minute. On this occasion, they were ahead until the 84th minute before Spurs turned the game on its head and needed De Ligt's late goal to save them from defeat.

It will be a concern for Amorim and even more so because De Ligt admitted afterwards that United were 'tired' in the second half. 

Surely, the silver lining of losing to Tottenham in last season's Europa League final and being out of Europe this season was that United would be fresher for Premier League games. While they had a free week, Spurs were in Champions League action against Copenhagen on Tuesday evening.

Asked about his team dipping in the second half again, Amorim said: 'Today was different. We had a different energy. I felt more control from the team today than against Nottingham.

'If you want to compare both games, against Nottingham the energy wasn't there. Today we dropped a little bit second half because we were comfortable in the game.

'But we should do better; be more aggressive and feel the environment in the stadium. We controlled the game well but we need to do better because the game was there to take.'

Flying Bryan

Mbeumo underlined his growing importance to United with another goal and another strong performance despite having to switch to the left wing.

The Cameroon international moved across to allow Diallo to stay on the right after the Ivorian struggled on the left at Liverpool last month. But Mbeumo was still a real handful for Pedro Porro, who was eventually take off midway through the second half, and headed United in front with his sixth goal since a £71m summer move from Brentford.

Amorim also lent on Mbeumo's experience so the 26-year-old could keep an eye on Patrick Dorgu on his return to the starting line-up for the first time in five games. That made more sense than having a younger partnership of Dorgu and Diallo on the same wing.

Diallo played in front of Noussair Mazraoui on the right until he replaced Mazraoui at wing-back in the 58th minute when Sesko came on for the Moroccan, and Mbeumo and Cunha switched to their more natural positions on the right and left respectively.

United will miss Mbeumo – who was voted the Premier League's player of the month for October this week – Diallo and Mazraoui when they go to the Africa Cup of Nations next month.

Classy Casemiro

When Amorim was asked about Casemiro's contract situation this week, he attempted to kick the issue down the road. 'I'm really happy with Casemiro,' said the United boss. 'But let's focus on this season and then we'll see the next season.'

The problem is that the Brazilian will be out of contract in the summer unless United activate a 12-month extension, and can talk to foreign clubs from January 1, so the issue needs addressing before the end of the year.

It's clear that Casemiro's £375,000-a-week wages are a problem for United, and it might be better to agree a new deal on lower terms or let him leave as a free agent in the summer.

Either way, his value to this team was demonstrated again in his absence when Tottenham scored twice after he went off in the 72nd minute. It was a similar story against Brighton two weeks ago when United's opponents struck twice once he left the pitch, having set up the first goal for Cunha and scored the second himself.

United miss Casemiro's steadying influence and knowhow in midfield. They might not think it's enough to pay him the thick end of £20m-a-year at the age of nearly 34 when a central midfielder will be top of the agenda in the summer, but he leaves a big gap.