Scotland U20 met their Australian counterparts at the same venue in the opening round of the tournament, where they came out on top, 15-10.
Stage 3 Academy lock Callum Hunter-Hill starts alongside fellow Warrior and skipper Scott Cummings.
Three Warriors were in action as Italy edged out the USA 24-20 in Saturday's Test in San Jose, California.
Greg Peterson started for the Eagles with Simone Favaro in action for the Italy. New signing Leonardo Sarto also started for the Italians but was forced off early on after a collision.
Sila Puafisi was in the Tonga squad that lost out 23-20 to Georgia in Suva, and Djustice Sears-Duru helped Canada to a 46-21 win over Russia in Calgary.