Somdev Devvarman and David Martin stormed into the doubles quarter-finals of the ATP SA Tennis Open with straight-set win over Austria's Martin Fischer and Rainer Schuettler of Germany.
The Indo-American pair carved out a 6-3 6-4 win over their rivals in the opening round of the doubles event of the $442,50 hard court tournament.
They next face Karo Beck of Slovakia and Dudi Sela of Isreal, who shocked top seeds Dustin Brown of Germany and Dutch Rogier Wassen 6-3 7-5 in their opening round.
Somdev has already booked a quarter-final berth in the singles competition.
He beat Jesse Huta Galung on Wednesday and will clash against South African Rik de Voest for a place in the semi-finals.