Wolves beat Manchester United at Old Trafford for the first time since 1980.
Moutinho’s second-half strike was the only difference between Wolves and Manchester United.
Although United improved for 10 or 15 minutes in the second half, it was not enough as Wolves secured all three points.
Tonight’s defeat is Rangnick’s first since he took charge of United.
Wolves are now three points behind United and up to eighth in the Premier League table.