Script:

Eighth seeded Jo Wilfried Tsonga of France was upset by Austria's Andreas Haider-Maurer 7-6 6-2.

Following the encounter, Tsonga said he felt dizzy during the match and was asked if the heavy pollution in Beijing might have affected him.

According to the US Embassy's air quality measurements, the index indicated a "very unhealthy" level.

Nevertheless, Haider-Maurer didn't appear to have any trouble as he progressed.

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Meanwhile, sevent seed, David Goffin, defeated Italy's Andreas Seppi 6-2 6-3 to ensure his passage to the next round in Beijing.

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There was also an upset on hand, much to the delight of the home crowd, as Chinese wild card, Zhang Ze, ranked 219 in the world defeated Denis Istomin.

The Uzbek player succombing to his opponent in three sets, 6-3, 1-6, 6-3 to qualify.

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Finally, Viktor Troicki beat Milos Raonic for the first time.

The Serbian proved too strong for the out of form Canadian in the first round.

Troicki sealed a 6-4 6-4 victory to progress to the second round in China.