Bundesliga teams will be reminded of the league's social distancing guidelines after Hertha Berlin players celebrated together during their win against Hoffenheim this weekend.
Hertha players hugged as a group during the victory and defender Dedryck Boyata appeared to kiss his team-mate Marko Grujic, although he later said he was giving instructions about a set piece.
The German Football League has said the players will not be punished for their actions as the guidelines are advisory rather than sanctionable.
But Robert Klein, the chief executive of Bundesliga International, has reiterated that all players are expected to follow the advice which is designed to ensure the league's restart is not short-lived.
"In the hygiene concept, the guideline is to celebrate within social distancing rules," Klein said. "One can imagine at the height of a goal being scored that maybe, sometimes, the players get closer.