Team Canada will play three games in Spain and three in France to prepare for 2015 FIBA Americas.
Canada won gold in 2011 with USA Basketball at the FIBA Americas U16 Championship.
The Bruin standout played four games for the L.A. Sparks at the end of last season.
A total of 54 athletes will attend the Pan American Games and World University Games Trials.
Fields joins 22 athletes to attend Phase 1 tryout by invitation in Edmonton.