LONDON (AP) — Argentina is entrusting the wheel to rookie flyhalf Gerónimo Prisciantelli against South Africa in the Rugby Championship decider at Twickenham on Saturday.

The Springboks can clinch back-to-back Rugby Championship titles.

The Pumas are out of contention but keen to save face after a 67-30 hiding from South Africa last weekend in Durban.

They reacted by making seven changes and two positional moves to the starting XV.

Santiago Carreras was switched from flyhalf to his natural position at fullback, bumping Juan Cruz Mallía to the wing at the expense of Mateo Carreras. Flyhalf backup Tomas Albornoz was injured.

Given the No. 10 jersey was Prisciantelli, who has been with the Pumas all year but whose only previous test experience was seven minutes off the bench in a loss to

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