in 1985 the main stand of bradford 's valley parade caught fire , killing 56 .
inquiry found the fire had probably started via stray match or cigarette .
mccall was playing that day and his father was badly burned in the blaze .
bradford fan martin fletcher claims the fire may not have been an accident .
fletcher 's father , uncle , brother and grandfather lost their lives in the fire .
fletcher claims chairman stafford heginbotham may have been to blame .
but mccall refutes those claims insisting it was just an accident .