South Africa wins Edmonton Sevens and men's series title

Spain's Mana Williams, left, is tackled by Mexico's Ricardo Ancira during an HSBC Canada Sevens quarterfinal rugby match in Edmonton, Alberta, Sunday, Sept. 26, 2021. (Jason Franson/The Canadian Press via AP)

Chile's Sebastian Berti, left, is tackled by Jamaica's Mark Phillips during an HSBC Canada Sevens semifinal rugby match in Edmonton, Alberta, Sunday, Sept. 26, 2021. (Jason Franson/The Canadian Press via AP)

South Africa's South Africa's Siviwe Soyizwapi, right, scores a try as Britain's Luke Treharne tries to stop him during an HSBC Canada Sevens gold medal rugby match in Edmonton, Alberta, Sunday, Sept. 26, 2021. (Jason Franson/The Canadian Press via AP)

South Africa celebrates the gold medal win over Great Britain in a Canada Sevens gold medal rugby match, in Edmonton, Alberta, Sunday, Sept. 26, 2021. (Jason Franson/The Canadian Press via AP)

Britain celebrates their win over the Untied States in an HSBC Canada Sevens gold medal rugby match in Edmonton, Alberta, Sunday, Sept. 26, 2021. (Jason Franson/The Canadian Press via AP)

Kenya's Alvin Otieno, left, and teammate Alvin Marube celebrate a try against Germany during a quarterfinal match at the HSBC Canada Sevens rugby tournament in Edmonton, Alberta on Sunday, Sept. 26, 2021. (Jason Franson/The Canadian Press via AP)

Spain's Manu Moreno, top left, and Mexico's Nicolas Falcon, top right, jump for the ball during an HSBC Canada Sevens quarterfinal rugby match in Edmonton, Alberta, Sunday, Sept. 26, 2021. (Jason Franson/The Canadian Press via AP)

Jaz Gray, left, of the United States, runs for a try as Canada's Emma Chown chases during an HSBC Canada Sevens semifinal rugby match in Edmonton, Alberta, Sunday, Sept. 26, 2021. (Jason Franson/The Canadian Press via AP)