Kiwis Michael Venus and Artem Sitak have lost their respective first round doubles matches at tournaments in Beijing and Tokyo.

Venus and Croatian partner Mate Pavic have been beaten 4-6, 6-4 and 10-4 in the super tiebreak by French pair Richard Gasquet and Lucas Pouille in the first round of the Beijing ATP tournament.

Sitak and American partner Nicholas Monroe have lost 6-4, 6-2 to second seeds Raven Klaasen and Rajeev Ram in the first round of the Japan Open.