The goal scorers for United - Pogba and Shaw spoke after the match.
"It's my style of taking penalties, I've always done it", he said.
Mourinho cut a gloomy figure throughout pre-season, seemingly frustrated by the club's failure - or disinclination - to secure more of his summer transfer targets.
Snapchat stock pops despite drop of 3 million users
Despite the fall in the number of users, the firm said revenues were up and its losses had declined in its second quarter. The social network has reported that for the first time it has started losing users who log in once a day.
"If I miss, I know what I can hear after that".
Speaking to Sky sports the Manchester United defender had a lot to say about his first goal for Manchester United.
He added: "I think it's a good move because what we all saw in the summer was Pogba demanding things of players in the France dressing room".
'I want more feelings like that and that's why you come to stadiums like this, to help the team and score goals like that. I was thinking, "How do you get the power into it?" "It is just the win that is the most important".
Pogba resisted the pleas of Sanchez to take the spot-kick and after a prolonged stuttering run up, dispatched his shot into the top corner giving Kasper Schmeichel no chance to repeat his penalty saving heroics at the World Cup for Denmark.
U.S. general slams leader of Iran's Quds Force
But that has proved hard : European companies have quit Iran, arguing that they can not risk their USA business. He said he considered the US pullout from the nuclear deal and re-imposition of sanctions to be "incorrect".
"It will be a hard season for everybody, not just for us", the 55-year-old said. I think his reaction showed what it meant to him.
Mourinho's relationship with Pogba has attracted as much attention as his dealings with executive vice-chairman Ed Woodward in recent months, but events at Old Trafford appeared to be restorative. I was fantastic spirit, and there were periods of very good football. United were interested in signing Raphael Varane of Real Madrid and were looking to splash over £100m for the World Cup victor. I want to progress and get better again and I want to win more trophies. I haven't won the Premier League, I haven't won the Champions League, I haven't won the Euros so there are more to win.
"Even if I forget the goal, it was a complete performance", said Mourinho of the left-back's display. "We thought maximum [he could play] 60 minutes, but he managed 80".
Mourinho left no doubt as to how much he valued Pogba's efforts on the night, adding: "Paul was fantastic - his contribution was incredible". We were in trouble.
Tottenham boss Pochettino happy to keep Alderweireld
If all the players today are thinking about a collective target, we can be competitive. "That is the key this season". Spurs failed to sign Jack Grealish on Deadline Day as Aston Villa stood firm on their refusal to sell at any price .
Mourinho did not get the new centre-half he wanted in the transfer window and, from the comments he made after the Leicester match about being a head coach instead of a manager, he is still not happy about it.