http://www.swanseacity.com/news/britton-signs-new-swans-contract
1년 연장(2018년까지)
옵션 - 1년
옵션 발동시 2019년까지 스완지 잔류
DEAL DONE: Leon Britton has signed a new one-year contract extension at Swansea City. (Source: @SwansOfficial) https://t.co/xJVAxBlRAc