The semi-final matches will be played on 24 and 25 January.
Ng faces stiff South Korean test in the title match on Sunday.
The two shuttlers are meeting for the first time in their careers.
India have an unassailable 2-0 lead in the three-match series.
Manchester City face Tottenham Hotspur in the Premier League clash on Saturday.
Pakistan spinners have an opportunity to dominate in Sydney.
Federer is confident after demolishing Tomas Berdych on Friday.
Liverpool face Swansea City in the Premier League clash on Saturday.
The top seed Indian shuttler is favourite to win the semi-final match.
The top seed takes on former world junior boy's singles bronze medallist in the semi-final.
Sixers slipped out of top-four after Melbourne Renegades win on Friday.
Two batting-heavy units are eyeing maiden Desert T20 title on Friday.
Scorchers, with 8 points from 7 games, are well-placed to make the semi-final.
Stoke City face Manchester United in the Premier League clash on Saturday.
The Spaniard is looking in good touch after return from injury.