[2] He also played against the Blue Bulls[3] and in the unofficial final against the Golden Lions, where he scored another try to secure victory for Western Province.
[4] At the conclusion of the tournament, he was also named in a South African Schools squad and he represented them in matches against England[5] and France.
[6] Du Plessis played for the Western Province U19 side in the 2014 Under-19 Provincial Championship, scoring two tries in five matches to help his team all the way to the final, where they beat the Blue Bulls U19s 33–26.
[7] In 2015, Du Plessis was named in the Western Province squad for the 2015 Vodacom Cup, but failed to make any appearances.
[9] He was then named in their squad to tour Argentina for a two-match series as preparation for the 2015 World Rugby Under 20 Championship.