BELGIUM Davis Cup captain Johan van Herck has called up World No 16 David Goffin for today's crucial doubles rubber at the Flanders Expo Centre in Ghent. Goffin, an unconvincing five sets winner against Kyle Edmund on Friday, replaces youngster Kimmer Coppejans in Belgium's team, where he will partner Steve Darcis. While the move will drain Goffin's resources ahead of his potentially pivotal reverse singles rubber against Andy Murray on Sunday afternoon, Van Herck may be calculating that it would be wasteful not to have his best players by the numbers on court at every available opportunity. The Murray brothers have never lost a Davis Cup rubber together and should they maintain that record today, Britain will have a 2-1 lead as they chase their first victory in the World Cup of team tennis since 1936.