Second seed Tomas Berdych suffered a shock first-round exit at the Erste Bank Open 500 in Vienna on Monday, going down in three sets to Nikoloz Basilashvili of Georgia.
The Czech looked to have recovered from losing the first set after taking the second in a tie-break, but Basilashvili came roaring back in the decider.
He converted break points on either side of a Berdych break to lead 3-1, and despite his opponent hitting back to level at 4-4, Basilashvili had one more ace up his sleeve.
After doing superbly to hold serve during a marathon 11th game that went to deuce no less than five times, the Georgian earned a match point on Berdych’s serve in the very next game, clinching it to seal a 6-4, 6-7 (5-7), 7-5 victory after two and a half hours.
In other first-round results, big-hitters John Isner and Ivo Karlovic struck 34 aces between them to book their places in the second round.
Karlovic hit 16 aces as he defeated Steve Johnson 7-6 (7-5), 6-3, while Isner smashed 18 clean service winners on the way to a 6-7 (1-7), 6-3, 6-4 victory over German Jan-Lennard Struff.
The American saved all seven break points against him during the match.
Top seed Andy Murray, meanwhile, starts his Vienna campaign on Wednesday.