Elsewhere, French eighth seed Jo-Wilfried Tsonga suffered a shock defeat by Jerzy Janowicz, going down 6-4 7-6.

CNN: Injured Murray to miss French Open?

Tursunov saw off Gilles Muller of Luxembourg 7-6 1-6 7-5, while Czech star Berdych overcame Poland's Jerzy Janowicz 6-3 6-7 6-3.

CNN: Kvitova to face Errani in Dubai final

Having trailed 2-1 overnight, British hopes were revived when Andy Murray beat Jerzy Janowicz 6-3 6-4 6-3 in the penultimate singles match.

BBC: GB relegated after Davis Cup loss