A minor foot injury keeps Glasgow flier Evans out of the eighth and final leg of the IRB Sevens World Series after he played his part in Scotland's terrific display at Twickenham last weekend.

But there is no loss of quality in the squad with Lamont, the more experienced of the two with 36 caps, taking his place.

Scotland Sevens coach Stevie Gemmell said: “Sean’s addition to the squad is great news in terms of bringing in international quality players to the squad.

“It puts out a real statement about our intentions this weekend and I hope it helps to encourage the Scottish public to come out and support the team.

“There’s no-one else the same as Thom but Sean gives us terrific pace and power.

“What’s most important for me is that Sean wants to be here and it’s a great opportunity for him to perform on the international stage again.

“I know it’s been a while since Sean played Sevens but it’s where he made his name and I’ve no doubt he’ll be a huge asset to the squad.

Lamont left Northampton at the end of the season after his contract ran out and he will play for the Scarlets in the Mangers League next term.