Jazz Carlin: Double Olympic silver medallist retires from swimming aged 28

Carlin won 400m and 800m freestyle silver at the Rio Olympics in 2016Double Olympic silver medallist Jazmin Carlin will not race at the Tokyo 2020 Games after retiring at the age of 28.Carlin made her international debut for Great Britain when she was just 15 and also won European, Commonwealth and World medals during her…