UPDATE 1-Tennis-St Petersburg Open men's singles results

Oct 30 (Reuters) - St Petersburg Open men's singles
quarter-final results from Russia on Friday (prefix denotes
seeding, * new result)
* Igor Kunitsyn (Russia) beat 2-Victor Hanescu (Romania) 6-3
3-6 7-6(6)
* Marat Safin (Russia) beat Denis Istomin (Uzbekistan) 6-0
7-6(4)
8-Horacio Zeballos (Argentina) beat Ernests Gulbis (Latvia)
7-6(8) 6-4
Sergiy Stakhovsky (Ukraine) beat Bjoern Phau (Germany) 6-2 7-5

(Compiled by Infostrada Sports; Editing by Toby Davis)