The only bad feeling between the clubs was soon after Chelsea's foundation and admission into the Football League in 1905, the other West London clubs, including Brentford, lost many supporters and potential supporters to the only professional Football League club in the area. Other than that, Brentford and Chelsea have always had fairly good relations, even amongst supporters. In fact, during the 1970s many Chelsea fans would come down to Griffin Park if their club were playing away.