The indoor stadium to the west of Paris has been fitted with a swimming pool for aquatic events for the competitions between July 27-September 8.
Racing will host Clermont on September 14, La Rochelle on September 28 and Toulon on October 12 at Stade Dominique Duvauchelle with La Defense Arena being reconfigured for rugby and music concerts.
The 12,000-capacity ground is the home of Creteil-Lusitanos, south-east of the French capital.
South Africa captain Kolisi is only expected to be available for Racing for the Toulon game, after the end of his Rugby Championship commitments with the two-time Rugby World Cup holders.
In recent days, the flanker has been linked with a move back to the Sharks, after just the first of a three-year deal with the six-time French champions.
