According to Tuttomercato, Al Hilal in Saudi Arabia attempted to sign Santi in September. The player rejected the transfer, wanting to continue competing in the major leagues.

In the closing moments of the transfer window on September 10, 2025, Santiago Castro, an Argentine forward born in 2004, has reportedly emerged as the primary objective for Al-Hilal. An unexpected bid from the club, which is managed by former Inter coach Simone Inzaghi, has been reported out of Argentina. As the Serie A window for incoming signings is now shut, the team under Vincenzo Italiano's management could only bring in a free agent to replace Castro if he were to make a move. The forward, whose deal is valid until June 30, 2028, has a Transfermarkt-estimated value of €35 million and has also been the subject of recent links to Inter.