Sergio Aguero has revealed the moment he knew his heart problem was serious - after being 'left in a small room alone with monitors' while doctors ran tests on him in hospital last year.
The former Manchester City striker was forced to retire in December after suffering breathing difficulties during Barcelona's LaLiga game against Alaves the previous month, and was sent for scans.
But the results indicated that the Argentine should not continue his football career after he was diagnosed with an irregular heartbeat, and he has spoken out about the daunting moments he spent during two days in hospital, and 'started becoming nervous'.