Date

Player

From

To

Nat.

D.O.B.

Position

Contract

Fee

31.01.18

Michy Batshuayi

Chelsea (Eng)

Borussia Dortmund (Ger)

Bel

02.10.1993

St

06.18

season-loan

25.01.18

Gabriel Barbosa

Inter Milan (Ita)

Santos (Bra)

Bra

30.08.1996

St

01.19

season-loan

08.01.18

Philippe Coutinho

Liverpool (Eng)

Barcelona (Esp)

Bra

02.01.1987

Mf

06.23

£142m

01.01.18

Diego Costa

Chelsea (Eng)

Atletico Madrid (Esp)

Esp

07.10.1988

St

-

undisclosed