Pogba hadn't grabbed a goal and an assist in a game for United since November 18 of a year ago - the last time he actually scored a goal.
However, it was Pogba's brilliant free kick and touching.
Manchester United's ace midfielder and French worldwide Paul Pogba paid tribute to his late father Fassou Antoine on Tuesday in France's 3-1 win over FIFA World Cup hosts Russian Federation at the Krestovsky Stadium.
Second-half substitute Igor Smolnikov delivered a ideal cross for Smolov, who halved the deficit with a clinical half volley in the 68th minute.More news: Venus saves match points to defeat Bertens at Miami Open
The visitors came close through Mbappe 10 minutes later, but the Paris Saint-Germain forward was denied by home goalkeeper Andrei Lunev.
But Mbappe restored France's two-goal cushion with seven minutes to go, skipping past Roman Neustadter and firing in a low shot which slipped through the grasp, and the legs, of Zenit St Petersburg keeper Lunev.
According to Duncan Castles for Yahoo Sports, Mourinho wants next term to be the best season of Pogba's career and believes the Frenchman must apply himself more having been poor in training of late as well as on the pitch.
Playing in front of their home crowd, Russian Federation conceded in the 40th minute as Paul Pogba played a through ball into Mbappe, who took his time to beat a defender and then scored.
If the 19-year-old can carry on that sort of display and match up to Zidane's performances, France will be one of the favourites for the World Cup.