Sainsbury’s: Gemma Atkinson launches this year's official Sport Relief merchandise LONDON, 2018-Feb-27 — /EPR Retail News/ — Dancing queen, Gemma Atkinson, has a wheelie good time in Sainsbury's for Sport Relief. The stunt was promoting the Sport Relief merchandise, available now in Sainsbury’s stores and online with at least 50 per cent of every sale going to Sport…