McTominay had put United ahead against the already-relegated Terriers but a defensive mistake allowed the hosts to equalise.
The draw ended United’s chances of finishing in the Premier League top four with the Red Devils now four points off fourth-placed Tottenham with just one game remaining.
It’s been a tough few weeks for Manchester United who have stuttered again despite an initial resurgence under Ole Gunnar Solskjaer.
And the draw to Huddersfield appeared to hit McTominay hard, with the midfielder spotted sitting alone in the dugout.
Stadium Astro presenter Adam Carruthers explained: “Scott McTominay is over there on the bench and he looks smashed
“He looks like he’s really upset and he’s sitting there by himself.
“I don’t know what to read of this, maybe he’s just physically tired, but it looks like today’s draw, which feels like a loss, has hurt him.”
Pundit at the John Smith’s Stadium, and former Red Devil, Danny Higginbotham replied: “That’s how you want it to feel, it’s as simple as that.
“If you’re sitting there joking and laughing then it’s not good.”
Manchester United had looked favourites to make it into the Premier League top four a couple of months ago. But a run of bad results has left the side falling short.
And manager Solskjaer knows that missing out on the Champions League is a big loss.
He said: “We gave ourselves hope and belief that we could make it and we have had other results [go for us] but we’ve not been able to capitalise.
“It’s a big blow.
“Of course everyone is disappointed in the dressing room and you could say we lost the opportunity today for Champions League football, but that’s not the case, it’s been all through the season that it’s not been good enough.
“We haven’t been able to turn games to our advantage when we should have done, like today.”
Manchester United finish the season at home to Cardiff on Sunday.