The High Court is due to rule on a last-ditch attempt by five terror suspects including cleric Abu Hamza al-Masri to avoid extradition to the US.
Abu Hamza's lawyer asked the court to grant a temporary injunction against his extradition to the US for trial saying that "his client's health had deteriorated, perhaps because of his detention in "an unrelentingly harsh environment", adding that an MRI scan was "medically necessary".
The other accused men, Babar Ahmad, Syed Talha Ahsan, Adel Abdul Bary and Khaled al-Fawwaz must show there are "new and compelling" reasons not to send them. It is unknown if the other men will also plead ill health to avoid extradition.
This latest move follows last week's ruling, where the European Court of Human Rights rejected their bid to take the case to its highest chamber. The Home Office have said it wants to deport the men "as quickly as possible."