Brazilian health authorities intervened on Sunday after accusing four Argentine Premier League players of violating the country's COVID-19 quarantine rules
The two competitions are currently held every four years but the Saudi Arabian Football Federation (SAFF) put forward a proposal for a study of the impact of switching to every two years.
"We believe the future of football is at a critical juncture. The many issues that football has faced have now been further exacerbated by the ongoing pandemic," said SAFF president Yasser Al-Misehal.
"My dream is also to see the birth of the very first Women's Club World Cup. It's coming very soon. And it will really revolutionize women's football," he said.
The US women's national team are the current world champions and the dominant force in the game. However, top European men's clubs have invested heavily in their women's sides in recent years.
"We invite you to attend on an urgent basis discussion with us regarding the details of the competition and how it can best be accommodated within the football ecosystem," the letter concludes.
"We do not seek to replace the UEFA's Champions League or the Europa League but to compete with and exist alongside those tournaments," the letter read.