Pochettino, speaking to El Larguero, was following up similar comments made by PSG sporting director Leonardo earlier this week.
He declared, "I do not know. I listened to him and I didn't have time to talk about the transfer window with Leonardo or the president. We are focused on the competition, the victory. Often my sentences can be misinterpreted. I have a lot of respect for my players and I am careful when I talk about players from other clubs.
"I can understand that the coaches are as jealous of their players as I am. I am sure that the management of sport is working for the future."
Pochettino continued: "I'm not commenting. At Espanyol or Southampton, I dreamed of having the best. Messi was close to joining Espanyol ... He was almost loaned out, but he had a great game at Gamper ... I saw him a few times in London and Italy. We share Newell's love, because we got out of there, and it brings us together."