Manchester United could be blocked from the permanent signing of Marcel Sabitzer, who moved to Old Trafford on loan in January.
Sabitzer could be kept at Bayern Munich with new manager Thomas Tuchel set to make the decision on his future.
According to transfer expert Fabrizio Romano, the midfielder is keen on continuing his career with Erik ten Hag as his manager.
However, the Austria international's deal with United does not include an option to buy and therefore it will be up to the Bavarians and Tuchel to decide if he will be sold.
Under former manager Julian Nagelsmann, it had seemed that the 29-year-old's career at the Allianz Arena was over, but that could now change.
Romano suggests that the final decision will be made "around May/June" time.