Bristol Rovers F.C. are a professional club in Bristol, England. They compete in League One, the third tier of the English league system. They play home matches at the Memorial Stadium in Horfield, they have been competing there since 1996. They spent 89 years in the heart of North Bristol between 1897 to 1986 at the Eastville Stadium. Following a sale of the land they spent ten years at Twerton Park in Bath. The club's official nickname is "The Pirates", reflecting the maritime history of Bristol. The local nickname of the club is "The Gas", derived from the gasworks next to their former home, Eastville Stadium. This nickname originally began as a derogatory term used by fans of their main rivals, Bristol City, but was affectionately adopted by the club and its supporters. Cardiff City and Swindon Town are considered their second and third biggest rivals. Other rivalries include; Cheltenham Town, Exeter City, Forest Green Rovers, Plymouth Argyle, Torquay United and Yeovil Town.