Chelsea and Super Eagles defender, Kenneth Omeruo is in Madrid ahead of a move to Leganes.
Omeruo has concluded medicals and the club will unveil him as their third signing of the summer on Wednesday.
Reports said the deal is round 5 million pounds and Omeruo will spend the season on loan with Chelsea agreeing a 20% future sale clause in the agreement.
The Nigerian defender is yet to play a competitive game for Chelsea since his arrival from Standard Liege in 2014.
Omeruo has played on loan at Dutch side, ADO Den Haag, English Championship side, Middlesbrough and Turkish clubs, Kasimpasa (twice) and Alanyasor.