"The only doubt would be if Simeone leaves for PSG or wherever," Griezmann told Telefoot.
"I called him before extending my contract and he confirmed to me that he was staying. I can learn a lot from him.
"PSG are not my goal at the moment. I'm happy in Spain.
"I'm always proud to be popular with the fans. I try to smile and do my best. If they like it, it's even better."
Recent reports suggested that United boss Jose Mourinho is set to launch an aggressive pursuit of Griezmann in 2017.