Phard Napoli gave Lietuvos Telekomas a good run for their money but ultimately succumbed to a 62-52 defeat to crash out of the EuroLeague Women.
The American scored 18 of her 23 points in the second half to keep the visitors in front and improve her average to 20.8 points, as well as grabbing eight rebounds.
The Italians began brightly with Dutch center Marlous Nieuwveen scoring six of her 14 points as they led by five in the first quarter.
Three-pointers from Manuela Diamanti and then Immacolata Gentile twice restored the five-point gap in the second but the visitors fought back, with Douglas' trey capping a 15-6 surge that saw them go ahead by the half.
Douglas landed another three-pointer to stretch the gap to 12, and although Napoli cut the deficit to three with 3:34 on the clock, Ieva Kublina's trey helped the Lithuanians keep their noses in front.
Nieuwveen also claimed nine boards, as did Andrade. The Portuguese finished with eight points, while American forward Victoria Bullett had 14.
Kublina provided 10 points for the victors.