Scotland captain Kelly Brown has joined his country's ever growing injury list as interim coach Scott Johnson's options become yet bleaker.
The 31-year-old flanker, who picked up a knock in Saturday's defeat by Samoa, will not recover in time from an ankle injury to take any further part in the summer tour of South Africa.
Johnson is already without hooker Pat MacArthur, who was injured five minutes into the 27-17 loss which was also his debut, experienced trio Ross Ford, John Barclay and George Cross and British and Irish Lions quartet Ryan Grant, Richie Gray, Sean Maitland and Stuart Hogg.
Injury concerns also remain about fly-half Tom Heathcote and centre Alex Dunbar.
Glasgow Warriors hooker Fraser Brown has been called up to the squad following the injuries to MacArthur and first-choice hooker Ford, who did not travel with the touring party.
Brown, 23, who signed a one-year contract with the Warriors last month, commented: "It's a bit unreal to be honest, a few months ago I was playing amateur Premier Division rugby and now I've been called up to the Scotland squad.
"I'm immensely proud and hugely excited. I've had one day of pre-season training as a professional and now I'm going out to South Africa."
Brown's replacement is yet to be announced. With several other players nursing knocks after the bruising defeat to Samoa in Durban, Johnson and the rest of his management team will be hoping his inexperienced side will be able to produce on the big occasion.
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