article_snippet: Mike Brown's tenacity and watertight defence were missed in Sunday's 19-9 defeat by Ireland after Mike Brown suffered a double setback during the return to play protocols having been knocked out against Italy.
article_snippet: Mike Brown has been suffering from concussion and missed England's defeat in Ireland last week .
article_snippet: Mike Brown was knocked out while tackling Italy's Andrea Masi at Twickenham last month . '
highlights_snippet: Full-back missed England's Six Nations defeat in Ireland last week .
  
highlights_snippet: Mike Brown was concussed in early stages of victory over Italy last month .
  