Italian lucky loser Lorenzo Sonego, who stunned world No.1 Novak Djokovic in straight sets on Friday, continued his dream Vienna Open campaign by storming into the final with a 6-3 6-4 victory over Briton Dan Evans.

In Sunday's final, Sonego will play Andrey Rublev, whose semi-final opponent Kevin Anderson retired with a leg injury in the second set. The Russian is just one win away from securing a Tour-leading fifth title in 2020.

Sonego, who lost his final qualifier last weekend but entered the main draw as a lucky loser, fired 25 winners in the 80-minute contest to advance to only his second ATP Tour final.

He took a quick 3-0 lead against Evans on Saturday and held on to that advantage as he conceded just four points on serve in the opening set.

Evans needed treatment for a left shoulder problem after losing his serve in the first game of the second set and broke Sonego in the next game.

However, the Italian broke back immediately and later closed out the win as Evans netted a forehand on Sonego's first match point.

The 23-year-old Rublev, now eighth in the world, has yet to drop a set at the tournament and moved into the final when South African Anderson retired in the earlier semi 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.

"I already (had) a really great season, so I came here to enjoy, to do my best, to fight for every point, every match, and now here I am in the final."

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 has pulled out of next week's Paris Masters as a result.