Chelsea are keeping tabs on Real Madrid midfielder Casemiro.

Don Balon says Casemiro is attracting interest from Chelsea.

The Blues have already tabled a tentative offer for Casemiro ahead of the summer transfer window.

Roman Abramovich has backed the move, with the Chelsea owner a big admirer of the Bernabeu star.

And the Blues could land the midfielder, who does not have a guaranteed future at Real.