When Eintracht Frankfurt played Union Berlin on Monday Feb 24, 2020, the stands of Eintracht kept empty and have shown only this protest banner.
<a href="//commons.wikimedia.org/wiki/User:Chivista" title="User:Chivista">Chivista</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>