Perry Baker shows how he has helped turn the United States into a world force in sevens rugby.

Ongoing riots and safety concerns have forced the cancellation of the Hong Kong 10s rugby tournament amidst fears for the city's famous sevens event.

Organisers confirmed the 2020 10s tournament was off because they were unable to attract enough teams as the political unrest continues to trouble the city.

That tournament was to be held on April 1-2, immediately before the annual Hong Kong Sevens is run on April 3-4.

GETTY IMAGES Fans ham it up at the 2019 Hong Kong Sevens.

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The sevens tournament is part of the world series run by World Rugby and is the abbreviated game's most recognisable tournament.

The 10s cancellation is the latest high-profile sporting event to be hit by the difficult circumstances. The Hong Kong Open tennis tournament, the Asian Aquathlon Championships, the Hong Kong Squash Open, and some horse race meetings have already been called off.

GETTY IMAGES New Zealand's Kurt Baker eyes an opportunity against Argentina at the 2019 Hong Kong sevens tournament.

"It is with great regret that we have decided to cancel the 2020 HKFC 10s rugby tournament," the Hong Kong Football Club's rugby section said in a statement.

"Owing to the ongoing situation in Hong Kong, the tournament has, for the first time, had difficulty in attracting and securing firm commitments from enough overseas teams of sufficient quality.

"We have made the decision not to host what would have been a diminished event in 2020."

Both the men and women's teams are scheduled to contest the Hong Kong Sevens. It is set to be the seventh of 10 tournaments for the men and the fifth of seven events for the women.