Quick overview of foreigners in the Top 15 teams of the preseason poll. I apologize if I missed some players.
Hawai'i
Jakob Thelle (Norway) S
Dimitrios Mouchlias (Greece) OPP
Filip Humler (Czech Republic) OH
Guilherme Voss (Brazil) MB
Spyros Chakas (Greece) OH
Kurt Nusterer (Austria) MB
UCLA
Cole Ketrzynski (Canada) OH/OPP
Guy Genis (Israel) MB
Ido David (Israel) OH/OPP
LBSU
Skyler Varga (Canada) OH
Sotiris Siapanis (Cyprus) OH
Simon Torwie (Germany) MB/OPP
Nico Lietz (New Zealand) OPP
Penn State
Michal Kowal (Poland) OH
Sam Marsh (England) MB
Pepperdine
Yadiel Diaz (Puerto Rico) L
Ball State
Jakub Wiercinski (Poland) S
Tinaishe Ndavazocheva (Zimbabwe) OH
Eyal Rawitz (Israel) MB
UCSB
None
UC Irvine
William D/Arcy (Australia) OPP
Gustavo Gomes (Brazil) L
Hilir Henno (France) OH
Stefan Vartigov (Bulgaria) OH
Stanford
Justin Lui (Canada) L
USC
Simon Gallas (Germany) OPP/OH
GCU
None
Loyola Chicago
Vanja Petrasinovic (Serbia) OH
Ohio State
Alex Cabana (Cuba) MB/OPP
Lewis
Syver Drolsum (Norway) OPP
Antonio Rodriguez-Elias (Puerto Rico) MB
Princeton
Alexander Mrkalj (Canada) OH
Simon Xiao (New Zealand) L
Rodrigo Fernandez (Mexico) MB