Sumit Nagal registers biggest win of ATP career

BUENOS AIRES: India's Sumit Nagal registered the biggest win of his career when he stunned second seed

Cristian Garin

of Chile in straight sets to enter the quarterfinals of the Argentina Open

ATP

250 tournament here.

Nagal, ranked 150, produced high-class tennis on Wednesday to register an impressive 6-4 6-3 second round win over his Chilean rival, who is ranked way above at the 22nd spot in the ATP chart.

Nagal will play Spain's

Albert Ramos-Vinolas

, in what will be the Indian's maiden quarterfinal appearance at the ATP Tour level.

Ramos-Vinolas had defeated Domnik Koepfer of

Germany

7-5 6-4.