Puma have been embarrassed after a social media campaign backfired spectacularly.

The sportswear giant invited fans to to tweet Puma with a #foreverfaster hashtag to receive an auto generated message of support from one of their ambassadors including Cesc Fabregas, Marco Reus, Radamel Falcao and Usain Bolt.

However pranksters soon figured out that tweeting Puma with lewd twitter names could generate laughs.

This resulted in Marco Reus 'thanking Cocaine', Cesc Fabregas 'spreading Ebola' and Radamel Falcao labelling Liverpool as 'w**k'.