The new season kicks off in Vancouver on September 18, with another tournament in Edmonton the following weekend.
But Fiji's Olympic gold medal winning team and Samoa have joined New Zealand, Australia and Argentina in opting to skip the Canadian leg because of the ongoing effects of COVID-19, while Fiji will also be absent from the Singapore Sevens in October.
Fiji's players went more than four months without seeing their friends and families in order to achieve their Olympic dream in Japan.