Real Madrid are watching Espanyol fullback Aarón Martín.

The 19 year-old has emerged as a first-choice for Espanyol coach Quique Sanchez Flores this season.

And El Periodico de Catalunya says his form has attracted interest from Real.

While they're prevented from buying players next month, planning is well underway for the summer market.

Barcelona are also interested, but Real are confident they can convince Espanyol to sell to them first.