Stiliyan Petrov retired from football in 2013 after suffering from leukaemia . He was diagnosed with the disease aged just 19 and has been fighting it ever since.
Stiliyan Petrov retired from football in 2013 after suffering from leukaemia . Midfielder made more than 200 appearances for Aston Villa in seven years . Petrov was at Villa Park to watch Tim Sherwood 's side beat West Brom 2-1 .