Lionel Messi is arguably the finest free-kick taker in world football, and Diego Maradona claims he must take some of the credit for the Barcelona star’s stunning record.

The 1986 World Cup winner spent time working with the five-time Ballon d’Or winner when in charge of the Argentina national team between 2008 and 2010.

Messi was already a global superstar by that point, but was considered to have areas of his game that could be improved.

Maradona set about trying to play some small part in the ongoing development of a man who will take up a standing alongside him as an all-time great when an iconic career comes to a close.

One Argentine legend says he passed on words of advice to another when it comes to the art of set-pieces, with Messi having benefited from simple training ground instructions.