The Argentine superstar wants Liverpool’s Philippe Coutinho, midfielder Yerry Mina, Jean Michael Seri of Nice and Schalke ace Leon Goretzka.
Spanish outlet Diario Gol say Messi has told Barca they need reinforcements following the injury to Ousmane Dembele.
The Ballon d’Or nominee is determined to beat rivals Real Madrid to silverware this season and wants new signings to help the Catalan Club achieve that goal.
After Neymar’s exit and the failure to sign Coutinho and Marco Verratti, Messi is desperate for Barca to strengthen.
Mina is wanted by the 30-year-old with concerns over Javier Mascherano’s form at the Nou Camp.
Negotiations with Liverpool over Coutinho are expected to reopen in December with Barca determined to complete the signing of the Reds talisman.
Seri and Goretska have both impressed this season alerting Messi and Ernesto Valverde to the possibility of adding them to the Barca squad.
Barcelona have made a flying start to the new La Liga season winning their opening seven matches.
Messi has been in stunning form, netting 11 goals and providing three assists.
Next up for Barca is an away trip to Atletico Madrid tomorrow night at 7.45pm.
