Otamendi believes the club must cherish Aguero while he's still at the club.
“He's very happy," Otamendi told the official club website. “He's been a lot of years at the club.
“When City started to be well known he was already here.
“As I said, he's very important for the club. The fact he's staying another year here is very important for us.
“We have to enjoy him."