The Scotsman may have played it down but his words at the break are alleged to have been the catalyst for a rejuvenated Manchester United.
Undefeated in Group A of the Champions League, Manchester United unsurprisingly finished top having won all their home games and returning a total haul of 14 points. This, despite their substandard form in domestically.
Their inconsistent Premier League run threatened to infiltrate their assault on the European stage, though, as a first-half that was underlined by a series of wayward efforts made it seem like United would fail to find a break-through in their Old Trafford clash against Shakthar Donetsk earlier this evening, Tuesday, December 10.
'We had to show a bit more desire, bit more belief in ourselves in the performance,' said goal-scorer Phil Jones, whose second-half volley ultimately separated the English representatives from their Ukrainian guests.
Speaking to ITV, he continued: 'We got to grips in second half, in first we were too tentative but eventually created chances.'
On what David Moyes told his troops during the interview, Jones enlightened that: 'He told us to pass the ball better, create chances.'
Moyes' expression implied that loud words were leveled at his XI in the dressing-room, but the Scotsman refused to say whether he gave his own version of a hairdryer treatment, instead electing to say that he merely gave tactical advice: 'I said I didn't think we were close enough to them which would give the opportunities.'
He added: 'We got to top of the group, that's what we wanted. Overall, we didn't play well, especially the first 30 minutes but I thought before half-time we got better then, in the second half, we got much better.
'A club like Manchester United has to go to win the trophy - that's the job. We have to get better as the tournament goes on.'