Once Mourinho is formally presented, it will mark the former Chelsea and Manchester United manager’s return to Real Madrid, where he left in 2013.
The home side regained the lead after an error from Szoboszlai, who slipped as he attempted to control a throw-in.
Benfica confirmed the suspension in a statement on Friday.
The Blues’ poor run also included defeats to Paris Saint-Germain in the Champions League.
The Los Blancos opened the scoring in the 30th minute with a deflected strike from Kylian Mbappé, netting his 24th goal of the season.
Harry Maguire and Lisandro Martinez both missed the game due to suspension.
Kai Havertz scored a stoppage-time winner as Arsenal beat Sporting CP 1-0 in their Champions League quarter-final first leg in Lisbon.
Real Madrid goalkeeper Thibaut Courtois will be out for up to six weeks with a leg muscle injury.
The quarterfinal fixtures will take place on April 4, 2026.
This win marked Atletico’s first victory in their last three European matches.
