Finn Russell warns Scotland not to switch off after Wales threaten late comeback

Finn Russell lifts the Doddie Weir Cup after victory over Wales (Steve Welsh/PA)

Finn Russell admitted Scotland need to sharpen up after their late drop-off took the shine off a five-try 35-29 Guinness Six Nations win over struggling Wales at Murrayfield.

The Scots were well on top for an hour as they romped into a commanding 35-8 lead with doubles from Tom Jordan and Blair Kinghorn as well as a score from Darcy Graham.