India Davis Cupper Prakash Amritraj and Jesse Levine overcame a stiff challenge from the American wild card pair of Scott Oudsema and Tim Smyczek to advance to the quarter-finals of the US $50,000 ATP Challenger in Louisville, US.
The unseeded Indo-American pair won 6-4, 6-7(5), 10-6.
They next face winners of the match between Americans Zack Fleishman/Eric Nunez and Russian-American pair of Kevin Anderson and Sam Warburg.
In the singles, Prakash will open his campaign against Warburg.
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