World No.1 Daniil Medvedev admits he has “good opportunities to do something big” in the US Open after breezing past China’s Wu Yibing to set up a fourth-round match with Nick Kyrgios. After Kyrgios ruthlessly overcame JJ Wolf in straight sets, Medvedev put on a clinical show of his own, closing out the match in under two hours to beat Yibing 6-4 6-2 6-2 to reach the second week for the fourth consecutive year. Ad Despite the convincing manner of his victory, Medvedev was quick to praise his opponent while building up his own hopes.