Speaking after training on Saturday, Martin told us: "Robbo can't play because he has a little tear in his thigh, although we're hopeful he'll be back next week.
He later told reporters that the US Chairman of the Joint Chiefs of Staff, Martin Dempsey, would visit Beijing later this month accompanied by intelligence officials.
Jeffrey Martin, a Parkinson's sufferer and campaigner, told the AAAS meeting that he was hopeful the new US Government would be a supporter of biomedical technology and extend the scope of funding.