Rory Kockott wants to make his clash with Ruan Pienaar in the European Cup count.
Kockott, who wants to play international rugby for either South Africa or France, knows that a dominant display against the incumbent Bok scrumhalf and his former Sharks team-mate Pienaar will add to any international aspirations. He also knows that a convincing performance could inspire Castres to victory in the final league matches of the European Cup.
Ulster have listed Pienaar as starting at flyhalf, but he could feature at scrum half during the course of the game.
Four teams have already qualified for the quarter-finals and this weekend will confirm who gets home ground advantage in the play-offs.
French Top 14 league leaders Toulon will secure a home quarter-final with victory this weekend but the big match is Leicester hosting Toulouse in a match that will determine which of the two goes through.
It is a fixture worthy of a final.
Ireland’s two strongest sides Leinster and Munster can also qualify for a place in the last eight but have no chance of a home play-off.
Visit SuperSport for the times of those matches shown live or delayed in South Africa.