World Sevens series leaders South Africa have lost playmaker Justin Geduld for the final four rounds of the series after foot surgery.
Geduld was injured in the Las Vegas tournament.
The Blitzboks will also be without Rosko Specman for the Hong Kong and Singapore 7s.
South Africa leads the series points table with 126 points while England is second with 103 points.
The Hong Kong 7s will be played from the 7th to the 9th of next month.
