WATCH: Window-smashing Joshua opens Under Armour store in style

Anthony Joshua spectacularly smashed two windows in Amsterdam on Thursday, but his fans need not worry that the heavyweight world champion has gone off the rails.

Joshua was merely putting his punching power to humorous use for his sponsor, Under Armour, in order to draw attention to the opening of their new Brand House.

The Briton, who has won all 20 of his professional fights by knockout, certainly looked to be enjoying himself as he threw two thumping right hands through mocked-up panes of glass to officially open the store.

With his next opponent yet to be finalised, who can blame Joshua for taking advantage of a window of opportunity?

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