Diego Maradona has stated that he advised Real Madrid coach Jose Mourinho to lure Sergio Aguero to Santiago Bernabeu in the summer transfer window as he felt the signing of the Argentina international would help him to compete with Barcelona.
Aguero publicly declared his desire to leave Atletico Madrid, and, although he was linked with a move to Real more than once, the transfer never materialised and he eventually joined Manchester City instead.
"Real Madrid need a super team if they are to stop Barcelona and Sergio Aguero would have been the perfect man to help them to the same level as Barca," Maradona was quoted as saying by Marca.
"I have advised Mourinho to sign him more than once, but Real Madrid didn't listen.
"Barcelona now have a huge advantage over Madrid. We will see how everything turns out at the end of the season."
Barcelona currently sit fourth in the Primera Division table with seven points from three games, while Madrid lie sixth with six points.