At least there should be CL and UEFA league games without the crowd.
The problem is many players got infected by the Covid. It harms the clubs who lose a lot of players, especially losing their key players because they must be quarantined. It is surely not as simple as we think, Covid transmission is just starting and looks to increase quickly. The best option is absolutely to stop CL, UEFA, and also local league competitions. Even with no crowd, cannot solve the problem because the real problem comes from many aspects.
Transmission occurs on a large scale and is very difficult to anticipate because indeed this spread we do not know from where and who is infected when there is no further check.
On the other hand, it's a loss for sure because there will be a lot of impacts that will occur when their players are exposed to this epidemic.
the strongest example is now tttenham where many of them are in quarantine and made some matches postponed