Laura Robson leads promotion bid
In the absence of British No 2 Heather Watson, who is suffering from glandular fever, Robson will be joined by domestic numbers three and four, Johanna Konta and Anne Keothavong, with Elena Baltacha, sixth in Britain, completing the quartet.
The match in Buenos Aires will decide who progresses to the eight-nation 2014 World Group II after Great Britain finished as joint winners of the Europe/Africa Zone Group I in February.
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Hide AdCaptain Judy Murray said: “Of course we will miss having Heather with us in Buenos Aires, but we are fortunate to have strength in depth and a great mix of youth and experience in our squad.
“This is a fantastic opportunity for GB to grab a place in World Group II and we will be doing everything we can to make that happen.”