Why it is opponents are always referred to by their surname?
I think it's a just a case of first names only being used when people are sure virtually everyone reading will know who they mean - even the Brits don't tend to get referred to by first names routinely on here until they start to get really well known.
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GB on a shirt, Davis Cup still gleaming, 79 years of hurt, never stopped us dreaming ... 29/11/2015 that dream came true!