Los Colchoneros had a horrendous start to the season, having been eliminated from the UEFA Champions League and suffered recurring losses in the Primera Liga.

Argentina striker Aguero, who's also Maradona's son-in-law, has drawn the attention of European powerhouses such as Chelsea, but he didn't move away from Atletico.

Maradona stressed that the 21-year-old would have to carry on his career elsewhere if Atletico couldn't bolster their squad with new signings.

"To make the best of (Sergio) Aguero's qualities they (Atletico) must create a team worthy of him and sign some players," Argentina legend Maradona told Marca.

"Otherwise, they must let him go and not harm his development as a player."