Chelsea have suffered just one loss all season (away to Everton in Week 4) and come into this one with a perfect home record courtesy of wins over Hull, Aston Villa and Fulham.
Cardiff don�t have the same strong form to speak of, winning just one of their last five fixtures. Encouraging performances against Tottenham Hotspur, Fulham and Newcastle United will give the new boys of the Premier League plenty of confidence heading into this weekend's match.