Kiwi tennis players Michael Venus and Artem Sitak have had first round wins at ATP tournaments in Stockholm and Antwerp respectively.

Venus and Croatian partner Mate Pavic have beaten Britain's Ken and Neal Skupski 7-6, 6-4 to reach the second round in Stockholm.

Sitak and his American partner Nicolas Monroe have beaten and Indian and Belarussian pair 6-3, 6-3 to reach the second round in Antwerp.