Meanwhile, Novak Djokovic gave Serbia the perfect start to the Davis Cup quarterfinal against the United States as the world's No. 1 men's player defeated John Isner in Friday's opening rubber in Idaho.

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Chardy, who as world number 145 is the lowest-ranked player left in the draw, defeated sixth seed David Nalbandian in the second round and will now play Nicolas Almagro, who beat Andy Murray, for a quarter-finals berth.

BBC: SPORT | Tennis | Nadal & Djokovic into round four

If the machine spits tennis balls at an unreasonable speed and range, the player will quickly feel exhausted, overwhelmed, and defeated (feel familiar?) no matter how good they are.

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They also fill up as the player kills enemies, so as long as monsters are being defeated flask charges continue to become available, creating a fast-paced cycle of drinking and destruction.

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