Jose Mourinho watched in "secret" as Manchester United swept West Ham United aside to reach the semifinals of the EFL Cup.
Zlatan Ibrahimovic and Anthony Martial both struck twice as United eased to a 4-1 victory at Old Trafford on Wednesday.
Mourinho stayed out of sight after accepting a one-match touchline ban earlier in the day for his sending-off during Sunday's Premier League draw against the same opponents.
The Portuguese was inside the stadium but was only seen before and after the game when, after previously bemoaning his side's luck, he expressed his satisfaction with the outcome.
"I'm pleased with the goals because the performance is something we're used to," Mourinho told Sky Sports. "Goals plus performance means the real happiness."
Asked where he watched the game, Mourinho said: "It's a secret.
"I was in contact with the bench and we worked really well in a way where everybody was prepared. At half-time, I could be with the players in the dressing room. On top of that, I trust my people to pass on the information I need."