Kok, who sustained a knee injury at the Dubai Sevens in December last year, missed the remainder of the World Rugby Sevens Series, but now gets a final chance to push for inclusion in the team to compete at the Olympic Games in Rio in August.
Also among the selections by coach Marius Schoeman for the tournament in Rome next week are Frankie Horne and Warrick Gelant.
Gelant is returning to the Sevens fray after good performances for the Bulls, while Horne, a veteran of 68 World Series tournaments, will make a last ditch effort to crack the Rio squad following ankle surgery earlier this year.
Also included in the side are stalwart Blitzboks Stephan Dippenaar, Branco du Preez, Sandile Ncgobo and Siviwe Soyizwapi, while coach Schoeman also named newcomers Luke van der Smit, Donovan du Randt and Ryan Oosthuizen in the side. Ncgobo will lead the side.
Dewald Human, who scored a try for the Kings in their win over the Jacquares last weekend, is another returning to the side that will be looking to win yet another Roma Sevens title.