Chennai, Feb. 12 -- Indian Davis Cupper and former champion Sumit Nagal bowed out of the Chennai Open ATP Challenger Tennis Championship being held at the SDAT Stadium here on Thursday.
The top raked Indian went down righting to Qualifer Petr Bar Biryukov def. 6-4, 6-7(2), 3-6 in the Second Round of the singles event. .
The India No.1, who was seeded eighth, won the first set against big-serving left-hander Petr Bar Biryukov, ranked No. 305 in the world. Nagal also had three break points in the second set on Biryukov's serve andwas is all set to gain ascendancy and seal the contest in straight sets, but failed to convert them.
With no breaks of serve, the set went into a tie-break, which Biryukov won before taking a 3-0 lead in the decid...