Three Scotland players were unable to take a full part in training today following the weekend loss to Wales in the RBS 6 Nations Championship. Captain Jason White, who retired with a head knock in the first-half in Cardiff, is improving. Scotland team doctor James Robson said: Jason will continue to be assessed on a daily basis but he will require being free of any dizziness after exercise, before conclusive tests can be conducted to determine when he can resume rugby. Three Scotland players were unable to take a full part in training today following the weekend loss to Wales in the RBS 6 Nations Championship. Captain Jason White, who retired with a head knock in the first-half in Cardiff, is improving. Scotland team doctor James Robson said: Jason will continue to be assessed on a daily basis but he will require being free of any dizziness after exercise, before conclusive tests can be conducted to determine when he can resume rugby. Fellow forwards Nathan Hines (chest infection) and Jim Hamilton (shoulder) also missed training today, while Simon Webster (hamstring pain), who had to withdraw on the eve of the Welsh match, has still to return to full training. In addition to the 22 players on duty in Cardiff, Webster, Dave Callam and Calum MacRae (all Edinburgh) were invited to the match debrief and today’s training session.