Pogba joined the 'Red Devils' for a then world record fee, but his time at Old Trafford has since been beset by inconsistent form and clashes with Jose Mourinho.
"It didn't affect me," said Pogba on the incident in which Mourinho stripped him of the Manchester United captaincy.
"I'm still playing and I'm really happy to play. The manager is the one who chooses who is captain. I was the second one after Valencia. Then if he takes me the armband it doesn't change anything for me.
"I just want to play, perform, that's my job and give my best for my team and for everybody, for the fans, for the club. It didn't really touch me, didn't affect me. Nothing changed really.
"Choosing to come back to Man United was my choice. Juventus were playing Champions League and Manchester were playing Europa League. I knew first of all I wouldn't play Champions League and I was very happy.
"I made my choice and don't regret it at all. I know Manchester the last few years are not being at the top but I came back just to help the team and try to come back at the top so we are on the way.
"We have a lot of goals so, for me, no it's not strange. It's a choice and I don't regret it all. I'm very happy to come back to Man United and wear the shirt and everything. I'm sure we will come back to our best.
"Do I look sad? I'm happy. Like I said again, I'm happy to wear the shirt, I'm really happy to come back to Man United wearing this shirt playing for this team, this big club."