Supporters were hospitalised after a crush at Olembe Stadium during Cameroon's Africa Cup of Nations victory over Comoros on Monday.
Gabon have released Pierre-Emerick Aubameyang from international duty so he can undergo medical exams after contracting COVID-19.
Pierre-Emerick Aubameyang returned to training with Gabon at the Africa Cup of Nations, but now coach Patrice Neveu has COVID-19.
AFCON 2021 kicks off on Sunday where teams will be allowed to make up to five substitutions, but must also play if they have 11 fit players.
The final two rounds of qualifying for AFCON 2021 kick-off this week on beIN SPORTS, beIN SPORTS CONNECT and beIN SPORTS XTRA.
CAF has announced the postponement of men's and women's AFCON qualifiers, due to the coronavirus