In the 88-89 season, Bayern Munich won the Bundesliga championship under heynckes, but after the transfer of Mateus, Bremer and other players to Serie A, Bayern's competitiveness in the Champions League declined, so in the summer of 1989, Bayern spent 1.6 million marks to recruit Jurgen Koller, the best defender in Germany at the time. This transfer is very crucial, and the arrival of Korel will help Bayern reach the final four of the Champions League again.

But after reaching the semi-finals, Bayern met the powerful Milan again, with Kohler once again facing his old rival Basten. In the first leg, Milan won a penalty at home, Basten took the lead and Bayern did not score away from home. In the second leg, Bayern performed well and Kohler did not give Basten any more chances. Strem scored the second time to tie the total to 1-1. In the end, the two teams went into extra time, milan striker Bognovo scored in 101 minutes to score away from home, and although McKinnari then scored a goal for Bayern, Bayern was eliminated with an away goal disadvantage. Although sad, bayern defended the Bundesliga title a few days later, the first time the 24-year-old Korel won the championship trophy, and he and his teammates celebrated wildly.
In the 1990 World Cup, Korel as the main center-back of the West German team, mainly or stared at the opponent's scorer, the group stage, the West German team won two wins and a draw out of the first place, did not expect the Netherlands team in the f group to achieve the third group barely entered the quarterfinals, directly facing the West German team, Korel again faced his old acquaintance Basten, this time he did not give the Dutch any chance, a stalker will be Basten completely frozen, and Rijkaard and Worrell's same end, so that the West German team took the lead, In the end, West Germany beat the Netherlands 2-1 to advance to the round of 9, and Basten, who had been complaining about Korel's rough movements after the game, admitted that the German big man was the defender who made him the most uncomfortable, and his performance was world-class.
Under the rules of the time, Kohler's defense was indeed very rough, and tackling the ball on the side and rear was commonplace, but it could not be denied that Kohler's defensive prediction was excellent, the make-up was timely, the tackle was precise, the body was strong, and the speed was not slow. After Basten, he put The Czechoslovak high school striker Skuhlavi, who scored five goals in the group stage, to mute, and West Germany reached the semifinals 1-0. In the semi-finals, Kohler faced England striker Reinkel again, Bremer took the lead in scoring free kicks for West Germany, Kohler once again defended Reinkel closely, but this time the small Englishman still survived, using a block to throw away Kohler's score, but in the subsequent penalty shootout, West Germany still relied on the steel version of will to win.
In the 1990 World Cup final, West Germany faced Argentina, this game Kohler's pressure was much less, on the one hand, Argentina's fiery Caniggia was suspended, and the opposing attacking core Maradona was taken care of by Mateus and Buchwald. Korel is facing Argentina's No. 9 de Zotti, and the strength is not outstanding. Shortly after the opening, Argentina's Monzon was sent off by a red card, West Germany has always had the advantage in the scene, after West Germany relied on Bremer's penalty to get the lead, De Zotti, who was very depressed by Korel's stare, was angry and frustrated, pulled Korel down, and also received a red card, and finally the two less Argentine team was powerless to return to heaven, and West Germany won the World Cup for the third time.
After the baptism of the 1990 World Cup, Kohler became the hottest defender in world football, although Bayern Munich has 6 players who are members of the World Cup winner West German team, but in the 90-91 season, they only won the Bundesliga runner-up, and the championship trophy was taken away by Kaiserslautern. In the 91-92 season, the Bundesliga was facing a restructuring after the merger of the two Germans, Juventus issued invitations to two big generals in the Bayern backline, and in the summer of 1991, Kohler and Ruit moved to Juventus together, Kohler was worth 4 million marks, while Ruit was 3 million marks.
At that time, the best players in the world gathered in Italy, but it was not easy to get a foothold in Italy, Ruit returned to Germany after a season, and Koller, who was good at defense, became a favorite of Trapattoni's men, and Kohler was paired with Brazilian defender Cesar, and the nightmare of those world-class strikers began. In the 91-92 season, Milan was the strongest team in Serie A at the time, but Juventus was evenly divided in the two-legged match against Milan, two games 1-1, Kohler's performance was extremely good, after the first leg, Basten exchanged shirts with him and welcomed him to Serie A. Later, when Kohler talked about Basten, he was blunt, Basten is a real all-round center, in my opinion he is stronger than Levan. In the first season, Juventus finished runners-up in the league by eight points behind Milan, which was a good result for Kohler.
In the 1992 European Championships, the German team also basically completed the replacement of the old and the new, although Mateus was absent due to injury, but after the merger of the two Germanys, The addition of Summer made Germany's strength unabated, but the lineup still needs to be run-in, they were in the first round of the group stage and the former Soviet Union drew 1-1, but paid the price of Waller's injury, the second round of the group stage 2-0 defeat to Scotland, in the last round, they met the Netherlands again, this time the Dutch team is obviously prepared, the old coach Michels is in charge, the Dutch three musketeers are all in place, The addition of Bergkamp, a new generation of Dutch offensive geniuses, made Korel a little careless, and he also received a yellow card in the game, which was Köller's first yellow card since participating in the Three Worlds Competition, which shows the superb defensive skills. In the end, the Netherlands beat Germany 3-1, but germany still qualified second in the group.
After qualifying from the group, germany met the host Sweden team, Vogts team lineup made some adjustments, the Vikings at this time are also strong, the black strong HanDa Herrin on the front line, the baby-faced Brolin and the high school forward Anderson, but the German team scored a free kick by Hasler to get the lead, after which Riddle scored twice, and Germany reached the final 3-2. I thought that the German team would once again face the powerful Netherlands, but I did not expect the Netherlands to be defeated by the dark horse Denmark in the penalty shootout. The unexpected German team used Kohler to keep an eye on Laudrup Jr. in the final, no one expected that the most reliable captain Bremer made consecutive mistakes on the left side, and the German team was 0-2 by Denmark, although Kohler was selected for the best team at this European Championship, but his European Championship title was lost. To be successful, Kohler, 26, had to wait another four years.