Action at Twickenham Stadium is due to begin tomorrow and conclude on Sunday (May 21).
The final spot at the 2018 Rugby Sevens World Cup in San Francisco in the US will go to either the Samoans or Russia, with the Pacific islanders 21 points ahead of their rivals.
Russia can draw level but would need to win the tournament to gain 22 series points, which would be their first ever victory.
New Zealand, England, Fiji, Kenya, South Africa, Wales, Australia, and France as well as the hosts have already qualified.