(Reuters) - 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. “I don’t know why it’s going so well. I have such an amazing team, such amazing friends around me that always support me and probably that’s why I’m playing so good,” Rublev said in an on-court interview.