It's what you do in the dark that will put you in the light, says new Under Armour campaign

‘Rule Yourself’ was introduced last year with a spot showing three US athletes multiplying into an athlete army as they train and finishing with the line ‘You are the sum of all your training’.

The campaign’s next stage changes that line for ‘It’s what you do in the dark that will put you in the light’, which will be illustrated for UK audiences by an ad starring Manchester United footballer Memphis Depay.