It is notable that this deal involves Barcelona, a club that for so long refused to have sponsorship on their shirts. In 2006 they agreed to put UNICEF's logo on their shirts. Their first commercial sponsorship was not until the 2011/12 season when Qatar Sports Investments, which saw Qatar Foundation on their shirts for two seasons followed by Qatar Airways this year. For comparison, Manchester United's first sponsor, Sharp, appeared in 1982/3, Liverpool (the first professional club) had Hitachi in 1979 and Real Madrid started with Zanussi in 1982/3.