The Spanish striker is enjoying a new lease of life with three goals in his last four games and believes his manager's style of play suits him perfectly.
He also poured praise on the Italian's personable style, which he believes is reaping its rewards across the squad.
"I was told that he's a coach who plays very well with the ball and loves tactical work, but he also has a good personal relationship with the players," he told 'Gazzetto dello Sport'.
"Sarri knows perfectly the difference between the various moments in the life of a squad: when you need to work he's like a general and is the first to set the example, when it's time to joke he can have you dying of laughter.
"He's always available and interested, he wants to know how you are, how your life is. Football issues, sure but also, I don't know… the political situation in your country.
"One of the first times I met him, he asked me what I thought of Basque independence. I gasped, I didn't expect that!
"We then talked about it passionately, and that's something about him that's not so obvious.
"His system is perfect for me, almost all the balls come to me when I'm in front of goal, and it's much better than when I was playing with my back to goal and had to turn around - that's not my game."