KEY THIRD- ROUND MATCHES

Friday ( Thursday night ET) uAngelique Kerber vs. Kristyna Pliskova uEugenie Bouchard vs. Coco Vandeweghe uVenus Williams vs. Ying- Ying Duan uGarbine Muguruza vs. Anastasija Sevastova uAndy Murray vs. Sam Querrey uTomas Berdych vs. Roger Federer uStan Wawrinka vs. Viktor Troicki uJo- Wilfried Tsonga vs. Jack Sock