Manchester United have failed to name Swedish striker, Zlatan Ibrahimovic, on the list of retained players published by the Premier League on Friday.
This means the talisman may not be offered a new contract when his current deal expires at the end of June.
United had signed Ibrahimovic on a one-year deal in 2016 with the club confirming last November that it was looking at extending those terms by a further 12 months.
However, a ligament damage suffered by the striker in the Europa League quarter-final second-leg win over Anderlecht now cast further doubt over whether he would be kept on at the club.
Despite scoring 28 goals, Ibrahimovic’s time at the club could come to an end as the club is reportedly in pursuit of Real Madrid want-away striker Alvaro Morata.
The former Sweden captain scored the winning goals in the Community Shield clash with Leicester City and the EFL Cup final against Southampton.
Former England defender John Terry will be among the high-profile free agents available this summer, following his exit from Chelsea, while Manchester City have already confirmed goalkeeper Willy Caballero, winger Jesus Navas and full-backs Gael Clichy and Bacary Sagna are to be released.
Midfielder Joey Barton is also looking for a new club after his release from Burnley, although he is serving an 18-month ban for betting offences.
Ibrahimovic made 46 appearances in all competitions this season, scoring 28 goals, and helped Jose Mourinho’s team lift the Community Shield, the League Cup and the Europa League trophy.
Analysis
BBC Sport’s Simon Stone
Zlatan Ibrahimovic will complete his rehabilitation from cruciate knee ligament surgery at Manchester United’s Carrington training complex.
The Swede is out of contract on 30 June and there was no mention of another deal being offered when Ibrahimovic’s name appeared on the Premier League released list on Friday afternoon.
That only proved nothing had been offered by 29 May, but it is understood there has been no change to that situation.
However, the fact Ibrahimovic will remain in Manchester to recover from an injury sustained in April and which is not likely to see him play again in 2018, indicates a new United contract is a possibility.
No guarantees have been made by the club though and evidently the extent of the forward’s recovery and United’s form in the first part of the 2017-18 campaign will be decisive.