Seven to watch at Murrayfield

Australia have top-scoring stars in their ranks with Henry Vanderglas, Bernard Foley and Ed Jenkins sharing 73 tries to date, but Scots should watch for the strong and usually white-booted Angus, a 21-year-old from Warringah who is leading the Aussie charts in his first world sevens series with 14 tries and 230 points in total so far.

Collins Injera (Kenya)

The Kenyans have a few real sevens stars, but none top the skilful 6ft 1in Injera, the Kenyan Sportsman of the Year in 2009, bar perhaps his brother Humphrey Kayange - watch him fly too.

Philip Mack (Canada)

When the 5ft 7in Canadian skipper plays they can compete with anyone; a master playmaker who was voted Canada's Sevens Player of the Year in 2010. For the real gas in this side, watch out for Sean Duke.

Tim Mikkelson (New Zealand)

One of the talented crop of sevens performers to emerge from Waikato, Mikkelson has been a stand-out over the past three years. The rangy winger has become a mainstay of the team with 64 tries.

Cecil Afrika (South Africa)

For stunning performers on this season's circuit, look no further than the 23-year-old dreadlocked Afrika. The top try-scorer and points-scorer in both the Dubai and Hong Kong tournaments Afrika delights in taking on players and has the gas to do it.

Matt Hawkins (USA)

The blond US captain known as the Polar Bear, born and raised in Durban, South Africa, has brought a real physical edge to the Americans' play, which the Scots will need to deal with in their pool clash.

Lee Jones (Scotland)

The former Selkirk winger has taken his club sevens form into the international arena and shown the benefit of a long schooling in sevens, and well as sheer pace. Jones grabbed a hat-trick against Portugal to help Scotland towards the Bowl on Sunday and needs one try this weekend to reach 20 in his first ten tournaments. It is odds-on.