It’s the second day of the Davis Cup (the World Cup of tennis), and Team GB continue with their battle against Serbia. With Novak Djokovic having crashed out of Wimbledon in humiliating fashion, he also decided not play for Serbia, his home country. This move should help GB in its bid to retain the title it won last year for the first time since 1936. Will Andy Murray and his brother, world No1 mixed double seed Jamie, make the most of this? Coverage continues on BBC2 at 5.45pm, with the climax tomorrow on BBC1 at 1.45pm.