Rehearsal before the biggest sports show

As it was tradition in the past, before every World Cup was played a preparation tournament (called the Confederations Cup). Sadly that is not the case anymore as that testing event is completely destroyed, however the host for the next major football competition has tried and at the end found a proper replacement who confirmed it seven days ago.
We know that in 2022 Qatar will welcome the best 32 teams in the world, and one year before that is going to be staged the Pan-Arab football event. Although not all six confederations will be represented, only two are going to participate: from Africa and Asia. The invitational event will gather 22 national teams who are going to entertain us from 01 until 18 December 2021, on the same stadia that the big finals are going to be played less than one year later.