Barcelona were in contact with agent Ramy Abbas for Mohamed Salah before the Egyptian penned a new Liverpool contract last week.
Salah signed a three-year deal to 2025 after months of negotiations.
The Athletic says Barcelona were among the clubs who 'asked' to be kept updated on Salah's situation at Liverpool.
Negotiations dragged for some time and speculation over his future only continued to rise and clubs across Europe were monitoring the situation.
Barcelona asked the player's agent Abbas to be kept updated on the situation as he would have been able to sign a pre-contract agreement with clubs abroad in January.