Manchester City cruised to their first win in the Champions League this season with Erling Haaland among the goalscorers in a 4-0 thrashing of Slovan Bratislava that did little justice to the visitors' dominance.
Barcelona were finally able to register new signing Dani Olmo with La Liga on Tuesday and he is expected to make his debut later on against Rayo Vallecano.
The former German international won five Premier League titles and the Champions League among 12 major trophies during his first spell at City between 2016 and 2023.
His retirement follows those of Toni Kroos and Thomas Mueller.
New Barcelona manager Hansi Flick said he expects Ilkay Gundogan to stay this season after reports linked the midfielder with a move away from the LaLiga club.
Barcelona woke up with a familiar sinking feeling on Wednesday, another Champions League hangover, after Paris Saint-Germain thrashed them 4-1 at home to eliminate them in the quarter-finals.
Ilkay Gundogan stroked home a stoppage time penalty to grab champions Barcelona a barely deserved 2-1 win at Las Palmas on Thursday.
Five years after a photo with Turkish President Recep Tayyip Erdogan sparked questions over his loyalty to Germany, Ilkay Gundogan will captain the national side during Saturday's international friendly against Turkey in Berlin.
Barcelona midfielder Ilkay Gundogan will captain Germany, manager Hansi Flick confirmed on Friday, nine months before the country hosts Euro 2024.
City's prolific striker Erling Haaland graciously handed the ball to Gundogan to take a penalty kick in the 84th minute for what would have been a hat trick, but Leeds keeper Joel Robles had no trouble turning aside his shot
Manchester City manager and restaurant owner Pep Guardiola joked that he would drop Ilkay Gundogan for the rest of the season after the midfielder's wife complained there were no good places to eat in the city.
Ilkay Gundogan booed by German fans in their warm-up game against Saudi Arabia ahead of FIFA World Cup.