Racing PositionsMarco Russ returns after cancer all-clear8YStephan UersfeldRuss back training after overcoming cancer8YStephan UersfeldRuss given all-clear after cancer treatment8YStephan UersfeldFrankfurt extend cancer-patient Russ' contract8YAssociated PressRuss vows to return after cancer battle8YStephan UersfeldFrankfurt's Russ has surgery after tumour diagnosis9YFrankfurt's Marco Russ has house raided9YStephan UersfeldFrankfurt captain to play despite tumour9YStephan Uersfeld