Romelu Lukaku and Ander Herrera restored parity before the break, but United were unable to find a victor during an underwhelming second half performance during which Pogba repeatedly conceded possession, much to the visible frustration of his manager.
The deal gives United more time to work out a long-term deal with De Gea, with Jose Mourinho suggesting earlier in the week that a contract can be agreed upon. Can we go there and bring those players here? No. "We don't have many - with all the respect, hope people understand what I mean - we don't have many 'mad dogs".
"We lost so many balls in midfield, we lost so many balls in our transition to the last third, it was hard to have that continuity".
"We played so well in the final 15 minutes of the first half because we were connecting with the front two [Lukaku and Rashford] by accelerating the game, making the right choices, but then in the second half we reverted back to the dynamic of losing too many balls in midfield". It is a match where because of that good reaction in the first half we had 45 minutes to win the game.
Saints had not won in nine league games and had scored only four goals at St Mary's, but they made a flying start as Mourinho's decision to play midfielder Scott McTominay at the heart of his defence quickly backfired.
The 55-year-old used the example of Tottenham to highlight his point, explaining that the days of plundering the north London side for their best players - as Sir Alex Ferguson was able to do a couple of times - are over.
Seven minutes later, it was 2-0.
Despite Fred's positive performance in the week, I feel Jose Mourinho will plump for Marouane Fellaini once again.
With the result, United are confirmed to remain in the seventh position for the current gameweek but their six-point gap to the top-four should certainly increase with Chelsea, Tottenham and Arsenal to feature on Sunday.