The Duke of Cambridge said tonight there is "sadly more work to do" to stop racism in football.
Speaking at a gala dinner to mark the 150th anniversary of the Football Association, Prince William praised the organisations attempting to remove discrimination from the game.
"I am proud of the work of Kick it Out, which is also celebrating an anniversary - its 20th - this year," said the royal, who is also the president of the association.
"There is sadly more work to do, but it is heartening to see how seriously the FA takes stamping the blight of racism and discrimination out of football."
His comments came after Manchester City's Yaya Toure complained of fans making monkey noises during his team's midweek Champions League victory over CSKA Moscow in Russia.
Prince William has stepped into the row over racism in football, saying there is "sadly more work to do" to eradicate it from the game.
The Duke of Cambridge has vowed to take Prince George to watch his beloved football team, Aston Villa, at Villa Park in the future.