Juanfran says he is delighted Antoine Griezmann has opted to sign a new contract with Atletico Madrid, affirming that the striker is a key player for the Spanish side.
France international Griezmann ended speculation surrouding his future by penning a four-year extension with the Colchoneros, tying him to Atletico until 2021.
And club team-mate Juanfran believes that Griezmann's decision to stay put is crucial for Atletico's hopes ahead of the new season.
"Grizzi's renewal is something that has made us all very happy. Koke and I knew something about him before the news broke, although we could not say anything," the defender explained to Goal.
"We need Griezmann because he has been one of the cornerstones of Atletico for the last few years.
"He is happy, he feels comfortable here, and we are delighted with him because he is a fantastic player and person."
Atletico, who have already brought in Nicolas Gaitan from Benfica, are expected to strengthen their squad further with the signing of Sime Vrsaljko from Sassuolo.
But although Vrsaljko plays in the same position as Juanfran, the right-back has welcomed the Croatia international's imminent arrival and insists competition for places will only make Atletico stronger.
"I don't know if Vrsaljko is official or not, but I have seen him play and I have heard great things about him," Juanfran added.
"As long as good players are coming to Atletico Madrid, we need them all to put together a competitive side and go as far as possible." - Goal