Mourinho surprisingly put Pogba straight into the starting line-up and handed him the armband even though the Frenchman had just returned to training on Monday after his exertions in lifting the World Cup less than a month ago.
"I won't be full from a World Cup".
The early summer transfer deadline in the Premier League sparked a drop in spending for the first time since 2010.
It is a relationship that has been seen as controversial by some, but both parties were cleared by an independent panel last season over any improper practices.
A man now on the books of MLS side D.C. United said: "I am sure Jose (Mourinho) has been getting the team right".
"Football is changing, and managers should be called head coaches", said Mourinho after beating Leicester, who he flagged as a side that should not be underestimated as they "invest more than us". Ivan Perisic, the Croatia worldwide, also featured prominently on Mourinho's wish list but it now seems that United's summer transfer business will be restricted to the arrivals of Fred, the injured Diogo Dalot and Lee Grant, signed from Stoke City as a third-choice goalkeeper. The France World Cup victor did captain United on Friday and netted a penalty in the 2-1 victory over Leicester.
A distinctive blue dye job was slammed by former United defender Gary Neville as it came just before a Manchester derby clash against City, although Pogba shrugged off those barbs with a two-goal haul in his side's thrilling 3-2 win.
Chelsea became favourite to land the CSKA Moscow midfielder as Sarri wanted to overhaul his midfield, the club quickly began the process to sign the player and an agreement had been reached with the club. It provides them the opportunity to approach players in the Premier League like they've never been able to before - it's quite intriguing really. Ashley did complete one major deal as the transfer window closed: His Sports Direct firm bought department store chain House of Fraser for 90 million pounds ($115 million).
"They spent more money than us so I think in the Premier League, we must get used to teams who have players of the same quality that we have".