Scrum V: The concussion debate

Scrum V takes a look at the issues surrounding concussion in rugby union, following on from Dr Barry O'Driscoll's recent criticism of International Rugby Board policy.

The former Ireland full-back resigned from the IRB medical committee in protest this year over the way players are assessed at pitch side after taking blows to the head during matches.

Scrum V presenter Ross Harries seeks his views on the subject along with Wales and Lions centre Jamie Roberts - now a qualified doctor - and former Scotland international Rory Lamont.