In a moving tribute to Robin Williams, the San Francisco Giants baseball team had the late comic's three children throw the ceremonial first pitch in their World Series match-up against the Kansas City Royals.

The stadium video screen played a tribute and then William's son Zak was joined on the pitchers' mound by his siblings Zelda and Cody as he threw the first ball of the game to actor Billy Crystal.

The Williams children on the pitchers' mound. Credit: USA Today Sports

After the game, the Williams family said in a statement that they were "honoured" by the tribute to their father, who was a fan of his home town's baseball side.

The Giants are now one win away from a third World Series victory in five years after overcoming the Kansas City Royals.

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Credit: Reuters\USA Today Sports
Credit: Reuters

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