Lionel Messi is unsettled at Barcelona, it has been revealed. The Argentine superstar, reports AS, is unhappy with the lack of support from Barca for his family over their Spanish tax problems.

Messi hasn't heard directly from the club over the issues and was left disappointed by the silence during the summer.

The Argentine isn't about to storm into president Sandro Rosell's office and demand a transfer, but for the first time, there is a small crack in the relationship between club and player - which European rivals are now monitoring intensely.