Barcelona coach Xavi has called for one single international window to reduce the load on players facing an already congested club calendar.
Barcelona sporting director Deco says the club won't be able to find a replacement to match the level of quality of Gavi in the January transfer window.
Barcelona are looking to sign a midfielder to cover for the absence of injury-stricken Gavi.
Miralem Pjanic, the 33-year-old Bosnian midfielder, is nearing the end of his playing career with Sharjah in the UAE Pro League.
In Sunday's Euro 2024 qualifier against Georgia, 19-year-old Spanish sensation Gavi sustained a serious knee injury.
Ansu Fati's potential return to Barcelona next summer is facing uncertainty due to financial constraints.