Porto completed a secretive transfer involving Luuk de Jong. To avoid suspicion, he was registered as a handball player for the medical exam. Once completed, he was introduced as a new player.

Luuk de Jong has been announced as a new player for Porto. The announcement was made during a special moment before a friendly match between FC Porto and Atlético de Madrid, which was filled with emotions as the club paid tribute to past players and individuals associated with the teams. The Dutch striker's arrival at Porto was highlighted during this event, adding to the significance of the occasion.