Clyde Best, the player widely regarded as football's first Black superstar, says modern-day racism is tougher to deal with than the abuse he received in the 1960s and 70s. Best moved from Bermuda as a teenager to join West Ham in 1968 and at times faced horrific racial abuse from the stands. Speaking about a new documentary - Transforming the Beautiful Game: The Clyde Best Story - from his home in Bermuda, Best told the Press Association: "I had a letter sent to me by mail, saying someone's going to throw acid in my face. "That's what makes it tougher for players today." Transforming the Beautiful Game: The Clyde Best Story, featuring contributions from the likes of Harry Redknapp, Les Ferdinand, Viv Anderson and Ian Wright, is being shown at Sadler's Wells East Theatre in London from Wednesday, March 25.