A Super 15 scheduling quirk means the tournament quarter-finalists have scant knowledge of their rivals.
The Crusaders and Reds did not play each other in the round-robin section and neither did the Brumbies and Cheetahs.
A year ago the sides met in pool play and this weekend's hosts both won tight matches. The Crusaders needed five Tom Taylor penalties to get past the Reds 15-11 and the Brumbies squeaked past the Cheetahs 24-23 in early pool play.
This year the revamped system has thrown up anomalies in the quarter-final draw because teams play each side in their conference home and away before they square off against four of the five sides in the other sections.
That meant the Crusaders dodged the Reds and Cheetahs while the Reds avoided the Crusaders and Kings.