In the current transfer window, the Reds are trying to sign Luis Diaz from Porto.
The deal is expected to be worth 45 million dollars plus a maximum of 15 million dollars in bonuses.
As it became clear that the player would move elsewhere if they didn't act now, the team decided to act now.
The 25-year-old had been linked with a move to Tottenham, who reportedly had a bid of around £38m rejected.
The asking price for the first choice for the summer was 60 million dollars.
The proposed move is not easy as he is with the national team.
In the group stages of the competition, Porto lost to Porto by a score of 2-0 and by a score of 5-1.
Porto finished third in their group and failed to advance to the knockout stages. They are top of the Portuguese top division, with Diaz having scored 14 goals and registered five assists.
If the deal is completed this window, it will be seen as a big coup for Julian Ward, who will take over as the sporting director when Michael Edwards leaves in the summer.
Ward and Edwards played important roles in support of the move.