Considering the information on Transfer Market is correct, the contract expiry is as follows:
June 2022
Milner
Woodburn
Kelleher
June 2023
Henderson
Shaqiri
Firmino
VVD
AOC
Salah
Mane
Fabinho
Keita
June 2024
Thiago
Matip
Alisson
Origi
Robertson
Gomez
TAA
June 2025
Davies
Tsimikas
Jota
Curtis
Neco