Sporting has expressed interest in Kaio César and is keeping an eye on his situation. Al-Hilal does not wish to sell the player. Porto and Wolfsburg have also shown interest in the 21-year-old Brazilian winger, but Al-Hilal's head coach, Simone Inzaghi, wants to keep him for the current season, leading to stalled negotiations. Despite inquiries from multiple clubs, Al-Hilal remains firm in their decision not to sell. The player's contract extends until June 2028, and his market value is estimated by Transfermarkt to be €5 million.