Pochettino disclosed this after PSG defeated Barcelona 4-1 on Tuesday night, thanks to a hat-trick from Kylian Mbappe.
“Great footballers create their own path, and those three goals have put him in the media spotlight,” Pochettino told a post-match press conference.
“We had no doubts, and we are very happy for him [Mbappe].
“Confidence always has to be absolute, and he felt calm [before the game].
“He asked me yesterday in training: ‘How many times have you won at Camp Nou?’ I told him once. He answered: ‘Tomorrow, it will be twice.’ That’s why he’s a top player.”