Argentina's Lionel Messi (L) and Brazil's Neymar are seen after employees of the National Health Surveillance Agency (Anvisa) entered to the field during the South American qualification football match for the FIFA World Cup Qatar 2022 between Brazil and Argentina at the Neo Quimica Arena, also known as Corinthians Arena, in Sao Paulo, Brazil, on September 5, 2021. - Brazil's World Cup qualifying clash between Brazil and Argentina was halted shortly after kick-off on Sunday as controversy over Covid-19 protocols erupted. (Photo by NELSON ALMEIDA / AFP)