Serb into China Open semis after 4-6, 6-4, 6-4 winSabalenka loses to 34th-ranked BartunkovaNovak Djokovic rolled back the years to oust Alexander Zverev from the China Open on Sunday, beating the top seed 4-6, 6-4, 6-4 to set up a blockbuster semi-final with Daniil Medvedev.The 39-year-old Serbian electrified a packed crowd in Beijing, where he extended an astonishing winning streak to 32 matches and is a firm fan favourite. He got off to a poor start, double-faulting twice in the first game to help Zverev, a decade his junior, break serve instantly. Continue reading...