Luis Suárez, one of the world's best footballers, talks to Simon Hattenstone about biting Italy's Giorgio Chiellini in the 2014 World Cup and other controversies, including accusations of racism, which he denies. He helps Simon hone his keepy-up skills while training in Barcelona, where Suárez was transferred from Liverpool for £60m Crossing the Line My Story by Luis Suárez is published by Headline on 6 November at £20.