Manori Ravindran International EditorLondon-headquartered super-indie All3Media is backing sport production outfit 3 Rock.Founded by presenter and producer Craig Doyle and Brian O’Driscoll, Ireland’s most-capped rugby player, the deal will see All3Media-owned production company North One become the exclusive live rugby co-production partner for 3 Rock.Meanwhile, All3Media’s digital agency Little Dot Studios — which last week launched a dedicated sport label with Little Dot Sport — will also work with 3 Rock as digital partner. Distribution arm All3Media International will be exclusive distributor.The deal is intended to boost 3 Rock’s footprint in live sport and associated factual programming, in addition to creating more branded and digital video and audio content.