Gauff digs deep and Sabalenka channels Nadal in dramatic second round wins

Gauff survives tense tiebreak to keep Wimbledon hopes alive

LONDON, July 1 : Two times Grand Slam winner Coco Gauff staved off another early exit from Wimbledon by beating Argentina's Solana Sierra 6-3 3-6 7-6(10-7) with a tiebreak turnaround to reach the third round on…