Argentina v Kazakhstan - Davis Cup quarter-final scores

July 8 (Reuters) - Davis Cup quarter-final latest scores between 

Argentina and Kazakhstan in Buenos Aires on Friday 
Argentina have an unassailable 3-0 lead   
 Juan Ignacio Chela/Eduardo Schwank (Argentina) beat Evgeny 
Korolev/Yuri Schukin (Kazakhstan) 6-3 6-2 7-5  

Played on Thursday                                          

Juan Martin Del Potro (Argentina) beat Mikhail Kukushkin 
(Kazakhstan) 6-2 6-1 6-2                       
 Juan Monaco (Argentina) beat Andrey Golubev (Kazakhstan) 6-3 
6-0 6-4