BLAIR COWAN is "100 per cent" certain that Scotland can win the RBS 6 Nations title next year.

The New Zealand-born flanker delivered a try and man-of-the-match performance as Tonga were defeated 37-12 at Rugby Park.

Coming on the back of a big win over Argentina and battling display against the All Blacks in the previous weekends, Saturday's result has sent confidence soaring even higher among Vern Cotter's squad.

The London Irish back-rower said: "I definitely believe we can win the chamnpionship. We have shown signs in these last three games that we are capable of doing that.

"If you don't believe you can win it, what's the point of turning up?"

Cowan's opening score was followed by touchdowns from Stuart Hogg, Alex Dunbar, Geoff Cross and Tommy Seymour, and 12 points from skipper Greig Laidlaw's boot.