 | US Open updates: Kyrgios, Khachanov heads to 5th set in quarterfinalKhachanov has never appeared in a major semifinal. The winner will face No. 5 Casper Ruud on Friday for a berth in the championship match. |
 | Serena Williams: Fighter, iconoclast and a championSerena Williams won over all of them with a brand of aggression that was thrilling and ruthless in equal measure. |
