Reports on Sunday night suggested that Tottenham had lodged a club record ?38.5million bid for the 22-year-old hitman.
But the Argentina forward agreed a two-and-a-half-year extension to his existing deal earlier this month and formally signed the contract at a presentation in Madrid at 1200GMT.
The new deal is thought to reduce the buy-out clause in the player's contract but Aguero himself insists he will not be leaving the Vicente Calderon.
"I'm staying here because I want to," Aguero told Atletico's official website.
Source: PA
Source: PA