White has had knee problems before

Scotland captain Jason White will miss the national team's summer tour of Argentina as he requires knee surgery.

Scrum-half Mike Blair is likely to continue with the captain's armband in White's absence, after deputising in this year's Six Nations tournament.

A serious knee injury prevented Sale flanker White from taking part in the 2007 Six Nations.

The Scots play will play two Tests against the Pumas, on 7 June in Rosario and a week later in Buenos Aires.

White has been able to play for his club Sale in recent weeks, although he was injured for Friday's European Challenge Cup semi-final win over Bath.

The 29-year-old's Six Nations campaign was also hampered after he sustained concussion.