Cape Town - Slovenia's Aljaz Bedene is to declare his allegiance to Great Britain - and could play alongside Andy Murray in the Davis Cup next year.
Bedene, 24, has a highest world ranking of 71st.
He has lived permanently in Great Britain since 2011.
According to the BBC website, If his application for a British passport is successful, he will be eligible to represent Britain any time after February next year.
But not everyone appears happy with the decision.
British tennis player Dan Evans on Twitter: "So a guy is becoming British who has already played for his country... Doesn't quite sound right to me!"