The Catalans are still in a delicate financial position after spending big on Anthony Gordon, Karim Adeyemi and Rodri - with Robert Lewandowski leaving as a free agent - and Marc-Andre ter Stegen and Ronald Araujo both heading out on loan.
Ferran Torres' move to PSG has boosted the budget for last minute spending, but Hansi Flick has been asked to draw up a list of for sale stars.
Alejandro Balde has been linked with a shock exit and fellow full-back Hector Fort also wants to move on due to a lack of first team action in the last 12 months.
Both players have been omitted from tonight's squad to face Elche in the defending LaLiga champions first outing of 2026/27.
Fort had previously been linked with a Premier League move - but with no formal offers forthcoming - reports from Marca claim he could remain in Spain and join Real Sociedad.
Borussia Dortmund are also willing to match Barca's €15M valuation and the club may give the Spain U20 international the final call.