Devvarman stuns Garcia-Lopez
India's Somdev Devvarman shocked third seed Guillermo Garcia-Lopez to reach the quarter-finals of the ATP Belgrade event.
The unseeded Devvarman won fewer points than the Spaniard and was broken six times but still triumphed 7-6(6) 2-6 7-6(8).
The Indian will face home favourite Janko Tipsarevic, who beat Germany's Mischa Zverev 6-2 6-0.
World number two Novak Djokovic - who has won every match he has played this season - is the clear favourite to win his home tournament after qualifying on Wednesday.