World No.7 Novak Djokovic advanced to the final of the Astana Open after Daniil Medvedev retired from the pair's semifinal clash at the end of a dramatic second-set tie-break due to a leg injury, here on Saturday.

Medvedev's retirement came moments after Djokovic had clinched a dramatic tie-break to level the match at 4-6, 7-6(6). It was an unfortunate end to what was shaping up to be one of the matches of the year on the ATP Tour, with both players bringing a high level to their 11th ATP head-to-head meeting.