Cori ‘Coco’ Gauff: ‘Cool that Michelle Obama knows I exist’

(CNN)The world of Cori “Coco” Gauff — the player taking Wimbledon by storm — has entered a different stratosphere after a life changing first week at the grass court grand slam. Williams had spoke glowingly of Gauff before Wimbledon started — “she is a great girl” the 23-time grand slam winner uttered last weekend — and wasn’t about to change her mind even though the teenager who has morphed from junior prodigy to star via the backroads of qualifying ousted her older sister Venus in the opening round. “I think there are some 15-year-olds, like me, who wouldn’t know what to do at Wimbledon,” Serena told reporters after reaching the fourth round with her most dominant display of the fortnight …