Pochettino named a strong side, with club record signing Tanguy Ndombele starting his first game of pre-season, while Harry Kane lined up alongside Troy Parrott up front.
"I think first of all I didn’t hear the press conference.
"We were in the middle of the team meeting. I cannot comment. In the end he’s my boss and the chairman.
"I’m never going to give a public opinion about my boss. Not for me to do. He’s the most important person in the football club. My full respect to him.
"Yes it’s true I was a little bit annoyed about some situations.
"Of course when you are so hot and sometimes you arrive late and something can happen. I apologise on behalf of our players to Man Utd.
"It’s not intention and sometimes when you arrive late these things can happen.
The result rounds off Tottenham's tour of Asia, with Real Madrid next up in the Audi Cup.
After that, Spurs host Inter Milan at Tottenham Hotspur Stadium before the Premier League season gets underway against Aston Villa.