Prince William and Catherine, Dutchess of Cambridge visited Barclay’s on Monday night to watch LeBron James’s Cleveland Cavaliers take on the Brooklyn Nets. And they were treated to a lot more than just a basketball game.

James and several members of the Nets wore T-shirts that read “I Can’t Breathe” in support of Eric Garner, the Staten Island man who was choked to death by the NYPD in July. A grand jury’s decision not to criminally charge the officer involved in Garner’s death has sparked days of protests in cities across the country.

Black athletes have been taking their protests to the playing fields in the weeks since grand juries declined to bring charges against officers in both Mike Brown and Eric Garner’s deaths.