But Proudfoot said: “Mako is not with us now. He has got a medical issue so he won’t be available for the weekend. It is just something medical, so he is out for the weekend.”
Vunipola had originally been expected to miss the clash with the Grand Slam champions after recently travelling to Tonga for unspecified personal reasons.
Quizzed on whether the 29-year-old would play any further part in the 2020 Six Nations, Proudfoot added: “We will take it week by week.”
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“We were excited to have him back, he is a great presence and a very experienced player, but we have great depth in our looseheads and they have been playing well,” Proudfoot said.
“We will give the guys a go who were there. Mako is a world-class player, but the guys have been doing a great job.”
– Press Association
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