Jordan Henderson (Central midfield) – Henderson was surprisingly rested against Southampton as Klopp tries to manage his return from injury. With Emre Can suspended for the trip to Portugal, Liverpool talisman Henderson is expected to come in. Henderson for Can.
James Milner (Central midfield) – Milner was a substitute against Southampton, but is expected to be drafted in alongside Henderson on Tuesday. That axis offers Liverpool a good base in midfield, especially in an away European clash. Milner for Giorginio Wijnaldum.
Alex Oxlade-Chamberlain (Central midfield) – Oxlade-Chamberlain has shown great improvement since his move from Arsenal to Liverpool in the summer, and he is now a key player for Klopp. Expected to start again on Wednesday. Retains his place.
Click below to see who is expected to start in attack