VIENNA    -   Andrey Rublev marched into the Vienna Open final after Saturday’s semi-final opponent Kevin Anderson retired with a leg injury in the second set to leave the Russian one win away from securing a Tour-leading fifth title in 2020. Rublev, ranked eighth in the world, has yet to drop a set at the tournament and moved into the final when South African Anderson retired while trailing 6-4 4-1. Anderson is Rublev’s second opponent to retire with injury this week after Jannik Sinner in the last-16 while the Russian also beat injured defending champion Dominic Thiem in the quarter-finals. Thiem struggled with blisters on his foot and pulled out of next week’s Paris Masters as a result. Rublev, 23, will be up against Italian Lorenzo Sonego, who stunned world number one Novak Djokovic in straight sets on Friday and beat Briton Dan Evans 6-3 6-4 in the semi-final.