Pogba joined the Italian giants in 2012 from Manchester United after the then 19-year-old became disgruntled with his lack of game time, despite his relative age and inexperience.
In the two years since leaving Old Trafford, Pogba has established himself as one of the best midfielders in the world and at just 21 was voted best young player of the 2014 World Cup.
And the French international has since been linked with a return to United after speaking about his fondness for the club but Marotta says he is not for sale.
“Of course he’s an interesting player for any team, as he is for Juve,” he said.
“Right now there’s absolutely no chance of manoeuvring any possible transfer. At Juve we’re once again a team that wants to win and build a competitive squad. There’s talk of €100-200 million, but we’ll try to do everything that we can to make Pogba stay. We won’t entertain negotiations.
“There’s been no offer of €200 million. Pogba is essential for Juve, both financially and for the club’s future. He’s a very strong player. I don’t know if Juve can compete with other teams like Real Madrid or Barcelona, but we’re trying to be a strong team. Is this the best side ever? In the years that I’ve been here it certainly is.”
Despite Marotta’s claims, Pogba’s agent, the infamous Mino Raiola, says Pogba will eventually leave Juventus and Raiola is well-known for shifting his agents about from club to club.