BT Sport and Welsh regional rugby have announced a new three-year sponsorship deal.
The new multi-million pound agreement is the largest joint sponsorship in the history of the four regions - the Scarlets, Ospreys, Cardiff Blues and Newport Gwent Dragons.
"Rugby is at the heart of BT Sport - we're excited to support Regional Rugby and its distinct and dynamic culture, with all it stands for in terms of strength, determination, daring, passion and skill," said Ann Beynon, Director Wales, BT.
The deal will see the BT Sport logo appear on Dragons, Scarlets and Ospreys' shirts for the next three seasons, while the Blues have agreed naming rights for their home ground which will now to be known as 'BT Sport Cardiff Arms Park'.