Ukraine v GB. Sue Barker presents live coverage from Odessa as Britain's crucial Davis Cup tie with the Ukraine reaches the halfway stage, with everything poised for a doubles showdown. Andy Murray is set to lead the charge to secure his side's future in the Europe/Africa Zone Group 1, which is on the line after losing to Israel. Britain will hope to avoid relegation with a solid victory against a side who have never beaten them before in Davis Cup competition. Commentary by Andrew Castle and Chris Bradnam.
