Sky Sports showed footage of Pogba joining training with his team-mates on Wednesday morning, including a seemingly terse exchange between the pair.
However, the French World Cup winner's latest outspoken comments criticising United's overly negative tactics after a 1-1 draw at home to newly-promoted Wolves on Saturday have provoked a reaction from Mourinho.
"[In the huddle] I said I was proud of them and I couldn't care less whether we won or lost", Lampard, who is in his first season as a manager, told BBC Radio Derby.
Sarri wants the playmaker back for the Liverpool game
Defender Virgil van Dyke looks set to miss the cup tie due to a rib injury but Dejan Lovren is in contention to start. Willy Caballero is expected to play in goal while Gary Cahill and Andreas Christensen could feature in defence .
Pogba has widely been criticised for failing to produce consistent performances under Mourinho at Old Trafford, but he was in fine form as he helped France to win the World Cup in Russian Federation this summer.
The club is now seventh in the English Premier League, eight points behind early leaders Liverpool and six behind cross-town rivals and reigning champions Manchester City. No fall out. The person who made the decision to be second-captain was also me.
Maybe, at 25, he still will but for the moment, it is far from clear if it will be him or Mourinho left standing at Old Trafford when the smoke from their conflagration clears.
Barcelona reportedly submitted a bid for Pogba in the summer, but it wasn't a realistic offer - £45m and Yerry Mina and Andre Gomes.
Argentina: la pobreza creció en el primer semestre de 2018
Aunque también se especula con qué hable del nivel de pobreza que se conocerá en la antesala de su discurso. A su vez, agregó: " Tenemos meses difíciles por delante , pero el objetivo sigue siendo el mismo".
"I think good results, and good performances, they make miracles", said Mourinho at his press conference on Friday before the Premier League match against Wolves.
Mourinho needs to back his star player, and handing him the armband seemed like a positive step.
Then came Tuesday's penalty-kick ouster vs. Derby County-for which Pogba was a spectator-and Wednesday's subsquent training session.
Pogba returned to Old Trafford from Juventus in 2016, but his relationship with the manager that signed him has been testy at times.
Un avión comercial cayó en una laguna de una isla de Micronesia
Los pasajeros y la tripulación han sido trasladados a un hospital de la zona, pero ninguno presentaba heridas graves, según las autoridades.
Mourinho's latest stand smacks of a leader who has chose to go all-in on reimposing his authority at Old Trafford, evidently deciding that the provocative comments from his most important player were the final straw.