At least four abseilers were seen descending from the room of Basel's St Jakob Park stadium with a banner protesting against Arctic oil drilling by Russian energy firm Gazprom.
Schalke, the German team playing against Basel, display the Gazprom sponsor on the chest of their playing shirts.
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The plans had been in development since 2014, but would help underline Britain as a "global player" in the wake of the Brexit result.
The number of calls about children suffering or witnessing emotional abuse or physical violence in the home has surged in recent years.
The curtain will come down on the show for the final time at the Piccadilly Theatre in March next year, before embarking on a UK tour.