Concussion tests are 'flawed' - Barclay

Scotland international John Barclay says the current concussion tests in rugby union are not robust enough.

Barclay was sidelined for six weeks after suffering concussion while playing for his club side Scarlets.

"You've got these computer tests where they test your memory and your speed and I passed all those so my cognitive function was fine but I didn't feel right," Barclay revealed.

"And that's the tricky thing, you can pass the test but if you want to there's still that ability to effectively deceive system," he added.

This clip is taken from 5 live Sport on Wednesday 8 November, 2017.