The 16-year-old Swede was joined by other campaigners who said looming uncertainty caused by inaction over climate change has led younger generations to question the intentions of today's political leaders.
The industrial action has left about 40,000 commuters stranded.
The country is gearing up for 15 October polls as it tries to shed a legacy of decades of unrest, following the completion of a historic treaty last month between the government and former rebel group Renamo, now the main opposition party.
Sanchez has a ream of French experience, having also played for Stade's Top 14 rivals Bordeaux-Begles and Toulon over four seasons before linking up briefly with the Jaguares in Super Rugby.
Both Hooper and Pocock are renowned for their expert work in slowing down and turning over opposition ball at the breakdown, which could prove important against a Fiji side that is at its best playing a quick-moving running game.
Sonny Bill Williams has been relegated to the bench as has Ben Smith, with coach Steve Hansen staying with his twin playmaker system - Beauden Barrett at fullback and Crotty's Crusader's teammate Richie Mo'unga at fly-half.
President Cyril Ramaphosa addressed a joint sitting of the National Assembly and NCOP on Wednesday on gender-based violence, where he put forward a number of initiatives to combat femicide and violence against women and children.
Trump said on Twitter that he had ordered the US Treasury to “substantially increase sanctions” on Iran, which denies carrying out the attacks, and told reporters the unspecified, punitive economic measures would be unveiled within 48 hours.