Wendy Alexander is set to announce a new challenge to the SNP about the commonwealth Games in Glasgow. Scheduled for 2014, she is to tell Alex Salmond to "bring them on" – arguing that if the SNP is genuine in its enthusiasm for staging the Games in Glasgow, it should legislate for them to take place the year before then, in 2013.
Labour's thinking is that it needs to show "the hollowness of the SNP's commitment to the Commonwealth Games". According to one insider: "If New Delhi can stage the games in 2010, what on earth are we waiting for? If Alex Salmond were really behind Glasgow's games, he could even try to get in ahead of the Indian capital and have the Games next year."
The sudden shift of tactics is understood to have caused tensions with Prime Minister Gordon Brown, who fears that if Scottish Labour wants the Glasgow Commonwealth Games to be staged one year earlier than planned, he may come under pressure to bring the London Olympics forward to 2011 - potentially sending costs soaring. His spokesman says is is "not persuaded" of the case for "bringing them on", despite Ms Alexander telling associates she thinks he has agreed.
If the SNP First Minister refuses to bring forward the date of the Commonwealth Games, instead sticking to the existing timetable, sources close to Wendy Alexander say that she will be able to claim that she has called Alex Salmond's bluff, and she will label him "a cowardly custard".
A bit of satire will always raise a smile!