Real Madrid's attacking superstars need no introduction but behind them lies a soft, vulnerable underbelly which Arsenal aim to exploit on Tuesday in a Champions League quarter-final first leg clash.
Carlo Ancelotti's forwards have not always been able to varnish over the team's defensive deficiencies, as was the case in a 2-1 defeat by Valencia on Saturday in La Liga.
The surprise loss left Real Madrid four points behind leaders Barcelona and was their 10th of the season across all competitions.
Last year as Madrid became Spanish and European champions, they suffered just two all season.