Updated

Mardy Fish moved a step closer to his second straight title, beating No. 8 seed Igor Kunitsyn of Russia 6-2, 6-4 on Friday to reach the semifinals at the Farmers Classic.

The top seed's next opponent will be 19-year-old Ryan Harrison, who outlasted Yen-Hsun Lu of Taiwan 3-6, 6-3, 6-4 in 2 hours, 24 minutes.

Harrison became the first American teenager to reach back-to-back semifinals since Andy Roddick in 2002. Fish beat Harrison in the semifinals at Atlanta last week on the way to his first title of the season.

Alex Bogomolov Jr. defeated fourth-seeded Thomaz Bellucci 1-6, 6-4, 6-1 and will play the winner of Friday's late match between second-seeded Juan Martin del Potro of Argentina and Ernests Gulbis of Latvia.