“Novak Djokovic will play Andrey Rublev or Fabio Fognini for the Serbia Open title after beating world number 26 Karen Khachanov 4-6 6-1 6-2 in just under two hours. Djokovic made a slow start and a slew of unforced errors followed, but he stormed back into the match and looked his unstoppable self against his 25-year-old countryman.”