The USA won 5-1 on the day, but former Tottenham and Chelsea manager Pochettino became irritated when asked about rotating his XI. The Argentine has so far selected 71 players during his 12 months in charge.
"Who are the regular players?" snapped Pochettino when asked about whether he has a first-choice XI.
"My question is, maybe we need to stop the press conference and I need to go to dressing room, come back, and start the press conference again.
"Because it's like we were the opposite, losing 5-1. I am the USA coach, not the janitor.
"Tell me which regular player we are talking about, because I don't understand what regular player means?"
The reporter suggested that he meant 'more experienced', prompting Pochettino to question: "Which? Which?
"We need to talk about that to congratulate the player. I don't know if they're listening to the press conference, a player feels they're not a regular player, they play and they did well - if I am the player, I am disappointed by that.
"To be honest, I am tired and maybe I don't understand the English. But I'm very disappointed in the first two questions, because I don't know what you expect I am going to say?"