Last news Köln
Bayern Munich coach Jupp Heynckes has praised the loyalty of the Cologne players who have committed their future to the relegated club, likening the gesture to Gianluigi Buffon's decision to remain at demoted Juventus in 2006.
Fortuna Dusseldorf have been promoted back to the Bundesliga thanks to a last-minute winner, but Cologne have been relegated.
Youngster Niklas Dorsch scored on debut as a second-string Bayern Munich side cruised to a 4-1 victory over future coach Niko Kovac and Eintracht Frankfurt in the Bundesliga on Saturday, while Cologne were relegated in dramatic fashion after a 3-2 defeat by Freiburg.
Despite the fact that Cologne are at the bottom of the Bundesliga table, Bayern Munich target Jonas Hector has extended his contract at the club for another two years.
Marcel Risse gave bottom-side Cologne faint hope of avoiding relegation from the Bundesliga with the "saddest" equaliser of his career in Sunday's 2-2 draw at home to Schalke.
It was a disappointing Saturday for Hamburg and Cologne as both sides' suffered defeats to push them closer to relegation.
Goals from Daniel Caligiuri and Guido Burgstaller secured a 2-0 win for Schalke over Freiburg on Saturday, postponing Bayern Munich's title celebrations.
Kosovo international Milot Rashica inspired Werder Bremen to a crucial 3-1 victory over relegation rivals Cologne on Monday.
Bayern Munich defeated Freiburg on Sunday amid reports that their opponent's coach Christian Streich has been approached about joining the Bundesliga leaders next season.
Robert Lewandowski converted a 91st-minute penalty to rescue Bundesliga leaders Bayern Munich with a 2-1 win at Wolfsburg on Saturday which took their winning streak to 13 and extended their advantage at the top of the table to 21 points.
Belgium striker Michy Batshuayi, on loan from Chelsea, scored his third Bundesliga goal in two games for Borussia Dortmund on Saturday in their 2-0 home win against Hamburg.