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Sportsworld heads to the US where we've seen a growing number of sport stars speak out about the high-profile cases involving black Americans killed after encounters with the police.

This week, NBA stars, Le Bron James and Kobe Bryant were among many other basketball players to wear T-shirts with the slogan "I cant breathe" on it - that a reference to the final words of Eric Garner, who died after being held in a chokehold by police earlier this year.

You'll hear from LeBron James in a moment, but first here's Kobe Bryant on why he chose to make this statement.

(Image: LeBron James, Credit: AP)