According to reports, Sunderland paid a reported £15m to secure Sadiki's services. This significant investment is a testament to the club's ambition and commitment to building a strong team.

When asked about his decision to join Sunderland, Sadiki expressed his gratitude towards the club and its fans. He mentioned that the club's history, vision, and people's enthusiasm for the team's future convinced him to make the move.

Sadiki also spoke highly of Sunderland's manager, Regis Le Bris. He praised the manager's willingness to get involved and his playing style, which aligns with Sadiki's own approach to the game. The two are excited to work together and create a winning team.