Chelsea defender Antonio Rudiger has reportedly emerged as Real Madrid's top transfer target for the January window.
The Germany international is out of contract with the Blues next summer after rejecting a new deal worth around £125,000-per-week.
Therefore, Real Madrid have made Rudiger their 'No 1 priority' for next year as they believe he is capable of filling the void left by the departures of Raphael Varane and Sergio Ramos.
According to Spanish outlet Marca, Real Madrid are eager to sign Rudiger on a free transfer this winter.