There is a curious thing happening with Lionel Messi. The footballer has retired from international football, but the brand is getting bigger.
At an age when most sporting superstars begin to retreat from the centre of the commercial universe, Messi remains one of the most recognisable faces on the planet. The Argentine may no longer be at the peak of his physical powers, but for the world's biggest brands, that has done little to diminish his appeal.
