When announcing his line-up, Springboks coach Peter de Villiers was brief in his reference to the drugs tests and more interested in talking about team selection for the Murrayfield contest.
"We have moved on, we're professional, we know how to deal with tough moments and we look forward to playing the game on Saturday," he said.
By picking Kankowski and Hougaard ahead of Spies and Ruan Pienaar, the world champions have given a chance to a couple of prospects for the future, with an eye on the Rugby World Cup in New Zealand next autumn.
"This one for us is an opportunity, with some things in the future in mind, to see how on a par our players are," added De Villiers.
Habana will miss the remaining three games of the tour
"We know how good they are, but whether they fit into the team only on the field of play is where you will find out.
"You don't make experiments at international level, you just reward players for what you believe they can bring to the game.
"We just have to use our players to the best of our ability. There is a World Cup next year. You would have to be stupid if you think that 15 players or 22 players can win a World Cup for you.
"You have to have a squad of 30, so I'm just using the opportunity that this tour gives me and I will play all the players on this tour."
So far South Africa have beaten Ireland 23-21 and
- and after Scotland the Springboks play England on 27 November and the Barbarians on 4 December.
South Africa: Zane Kirchner; Gio Aplon, Francois Steyn, Jean de Villiers, Lwazi Mvovo; Morne Steyn, Francois Hougaard; Tendai Mtawarira, Bismarck du Plessis, Jannie du Plessis; Bakkies Botha, Victor Matfield (capt); Deon Stegmann, Juan Smith, Ryan Kankowski. Replacements: Adriaan Strauss, CJ van der Linde, Flip van der Merwe, Willem Alberts, Ruan Pienaar, Patrick Lambie, Adrian Jacobs.
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