According to Sky Sport journalist Sacha Tavolieri, Liverpool currently have no intention of offering the Argentina international a contract extension and would consider a sale to create room for reinforcements.
Mac Allister, 27, joined Liverpool from Brighton & Hove Albion in the summer of 2023 after the Merseyside club activated his reported £35 million release clause. He signed a five-year contract and quickly established himself as an important figure in midfield.
The Argentine played a significant role under former manager Jürgen Klopp before continuing to feature prominently during Arne Slot's first season in charge, when Liverpool won the Premier League title.
However, the midfielder reportedly endured a more difficult campaign last season, and uncertainty has emerged over his long-term future despite an encouraging start to the current season.
Liverpool have already secured contract extensions for midfielders Dominik Szoboszlai and Ryan Gravenberch, but Mac Allister has yet to receive a similar offer.
The situation has reportedly frustrated the Argentina international, who spoke publicly in September about his desire to remain at Anfield for the foreseeable future.
His performances have provided a positive response to the uncertainty, with the midfielder showing encouraging form during the opening months of the campaign. Nevertheless, that improvement has not necessarily changed Liverpool's reported position on his contract.
Tavolieri claims the club wants to strengthen its midfield next season and believes selling Mac Allister could provide additional financial flexibility for a wider rebuild.
The report also suggests the player has been informed of the situation and that his representatives have begun exploring potential destinations ahead of the summer transfer window.
According to the same information, Mac Allister's agents have been in contact with clubs in Spain, Italy and Saudi Arabia. Chelsea and Real Madrid have also been linked with the midfielder in recent speculation, although no agreement has been announced.
Liverpool have reportedly identified other midfielders as potential targets, with Bournemouth's Alex Scott and Monaco's Lamine Camara among the players associated with a possible move to Anfield.
Any decision over Mac Allister's future would represent a significant development for Liverpool given his importance since arriving from Brighton.
The club would need to balance the prospect of receiving a substantial transfer fee against the experience and quality the Argentine continues to provide in midfield. A sale could also depend on the availability of suitable replacements and the level of interest from prospective buyers.
Mac Allister's contract situation will therefore remain an important issue as Liverpool plan their next phase of recruitment. For now, the reported intention to sell remains a transfer claim rather than a confirmed club decision, while the midfielder's stated preference has been to continue his career at Anfield.