New Zealand doubles player Artem Sitak and his American partner Austin Krajicek have been beaten in the semi-finals at the ATP clay court tournament in Houston.
Third seeds Ken and Neal Skupski of Britain have been too strong, winning 6-1, 6-4 in 55 minutes.
It was tighter than the score suggested with the different being break point conversions.
Sitak and Krajicek failed to take any of their 5 chances while the Skupski brothers broke serve 4 times from 5 looks.
Sitak and Krajicek now head to Europe for next week's Monte Carlo Masters.