Chennai, Feb. 2 -- India's Chirag Duhan, Siddharth Vishwakarma and Manish Sureshkumar
caused upsets, knocking out seeded players in the first round of Qualifying at the Chennai Open
ATP Challenger Tennis championship here on Sunday.
The final round of qualifying, featuring six matches, along with the Main draw, will be held on Monday.
Duhan, aged 21 and ranked No. 962 in the world, upset third seed Evgenii Tiurnev, ranked more
than 600 spots higher than him, in straight sets 6-4, 6-2, while 30-year-old Vishwakarma, ranked
No 771 in the world, defeated eighth seed Dominik Palan, ranked No. 537, 6-3, 6-1.
Manish Sureshkumar rounded off the eventful day for the Indian tennis fraternity by knocking out
12th seed Luca Castelnuovo 7-6, 6-...