Tennis: Osaka defeats Gauff in straight sets

Former US Open champion Naomi Osaka has caused an upset at the tennis tournament in New York by defeating third seed Coco Gauff in straight sets. The 27-year-old Japanese player is back into the quarter-finals of the grand slam for the first time in five years. She's also creating a stir with her lucky charms for matches which honour Black American tennis players. Sports reporter Felicity Reid talks to Lisa Owen.