Rybakina advances to Ningbo quarterfinals after opponent injured, Eala out‎

NINGBO, China (AP) — Top-ranked Elena Rybakina advanced to the Ningbo Open quarterfinals after Polina Kudermetova retired with a mid-match injury when trailing 5-0 on Thursday.Rybakina is the defending champion at the hard-court event in China and will next play Katarzyna Kawa, who defeated No.