Payton Spencer, the son of legendary All Blacks fly-half Carlos, scored on his World Rugby Sevens Series debut for New Zealand on Friday.
Novak Djokovic overcame a troubled build-up and a nervy first set to defeat Tommy Paul and reach his 10th Australian Open final.
Only Chris Evert has now made more grand slam singles finals than Novak Djokovic in the Open Era after he drew level with Serena Williams.
The Serbian will take on Stefanos Tsitsipas for the title on Sunday.