Spain-based Asisat Oshoala and China-based Chiwendu Ihezuo arrived at Nigeria's women's team camp at the Avita Resort in Austria on Sunday.
The two Super Falcons forwards were named in the final 23-player squad for the 2019 Women's World Cup on Friday.
Oshoala made history in the Uefa Women's Champions League final as she became the first African to play and score despite Barcelona losing 4-1 to Lyon two weeks ago.
A week earlier, Ihezuo scored her seventh goal in seven outings as Henan Huishang pipped Nanchang Bayi 3-1 in a Chinese Women's Football Championship encounter.