Scotland captain Greig Laidlaw has returned to Gloucester to have an ankle injury examined after he limped out of Sunday's Six Nations defeat to France.
Laidlaw was forced off in the 24th minute of a physical encounter in Paris that resulted in five Scots being laid low.
The 31-year-old was pictured leaving the Stade de France on crutches wearing a protective boot and Scotland coach Vern Cotter faces an anxious wait to see if the scrum-half will be fit to face Wales in two weeks' time.
Back-rowers John Barclay and his replacement John Hardie have both entered HIA assessments after picking up head knocks in the 22-16 defeat. Alex Dunbar and Fraser Brown are also having head injuries monitored.
Josh Strauss "will require further care and assessment" after injuring his side.