Yuki Bhambri knocked out seventh seed Aldin Setkic in straight sets to move to the singles quarterfinals of the ATP Karshi Challenger. Unseeded Yuki battled past his opponent from Bosnia and Herzegovina 7-5 7-5 in the second round of the hard court event at Karshi in Uzbekistan.But it was all over for his compatriot N Sriram Balaji. He lost 3-6 4-6 to Egor Gerasimov from Belarus in his second round contest. Only Indian left in the far, Yuki next faces top seeded Ukrainian Sergiy Stakhovsky. Ramkumar Ramanathan, Vishnu Vardhan and Prajnesh Gunneswaran had all lost in the first round.