Former Liverpool player Craig Johnston has written a 12-page letter to FIFA president Sepp Blatter criticising the controversial Jabulani World Cup ball.

Johnston has collated all the criticism of the ball from players and coaches and delivered a detailed and technical description of the problems to football’s governing body.

"If a sponsor came into your office before the World Cup and said: 'We are going to give you a new, perfectly round match ball, the players won't like it at all and there will be more mistakes made than in any other World Cup,’ what would you say to them,” his letter read.