The victory all-but advances the Spurs to a potential meeting with either the Miami Heat or Indiana Pacers in the NBA Finals.
Mills was not used during the Game 3 and has played limited minutes during the post-season, while Australian Boomers teammate Aron Baynes has been sidelined since the since starting Game 4 of the first round of the playoffs.
In Spain Brad Newley and his Gran Canaria are all square heading into Game 3 of their Spanish ACB Quarter Final series against Caja Laboral.
After being reduced to a bench role in the Game 1 loss, Newley was restored to the starting five, repaying the faith with 13 points and 6 rebounds in the 83-78 overtime win.
Fellow Boomer Joe Ingles and his FC Barcelona Regal has played a limited role as the Catalan club split their first two games of the Quarter Finals against Gescrap BB.
The Boomers’ stars play their third and deciding games on Wednesday morning (AEST).