Kudryavtsev knocks out 8th-seeded Agut at Chennai
Kudryavtsev earned a hard-fought 6-4, 3-6, 6-3 win over Agut, who had a memorable run here last year when he knocked out top-seeded Tomas Berdych in the quarterfinals and stretched eventual winner Janko Tipsarevic to three sets in the final.
In a surprise result that had the home crowd cheering, Indian wild-card entry Yuki Bhambri beat up-and-coming Spanish player Carreno Busta 6-4, 6-3.
Bhambri went for the lines against an opponent who failed to live up to expectations after rising from 715 to a career-best ranking of 64th last season, earning him the ATP's most improved player of the year award.
Copyright 2013 by The Associated Press
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