Chelsea agree deal for Douglas Costa

Chelsea have agreed on a deal in principle to sign Shakhtar Donetsk star Douglas Costa at the end of the season.

The Brazilian striker had been constantly linked with a switch to the Blues last winter, but a deal never materialized.

According to The Sun, the Blues will secure the services of the 24-year-old forward in the summer, having agreed on an £18m deal with the Ukrainian giants.

Costa has scored 27 goals in 133 games for Shakhtar so far.