Scotland’s Greig Laidlaw converted a try by debuting flanker Rob Harley a minute from fulltime to give the visitors a 17-16 win over Samoa on Saturday and a clean sweep of matches on their southern hemisphere tour.

Samoa seemed headed for its first ever win over Scotland when five-eighth Tusi Pisi, who provided all of his team’s points, scored a 61st minute try to give it a 16-10 lead.

Scotland, who had previously beaten Australia 9-6 and Fiji 37-25, applied continuous pressure but were denied by a tenacious defence until the last play of the game.

The Scots chose to tap and run a penalty near the Samoa goalline and flyhalf Mike Blair ran wide before turning the ball back to Harley who scored near the posts, setting up Laidlaw’s conversion.