A grieving son's funeral speech turns into an elegy for his father, the national football team and a country torn apart by its identity crisis. Rafe Spall stars in a microplay written by Roy Williams and directed by Clint Dyer after a conversation with Barney Ronay. Death of England is the latest in a series of plays made in collaboration between Guardian journalists and Royal Court theatre-makersWARNING: STRONG LANG…