bundesliga.com looks ahead to the latest instalment of the Rhine derby...
Survival has always been the objective at Köln this season and, with a seven-point cushion between themselves and the bottom three, they're almost safe. As for Leverkusen in third, the last five games are all about securing automatic qualification for the UEFA Champions League.
The Billy Goats will be without Brazilian forward Deyverson and Polish right-back Pawel Olkowski, but Daniel Halfar and are available again following injury. Midfielder Matthias Lehmann is a booking away from a mandatory one-match ban.
Gonzalo Castro has played his last game of the season after suffering a torn meniscus in his knee in training on Wednesday. Simon Rolfes is the most likely replacement in front of the back four, while right winger Karim Bellarabi is expected to be reinstated to the starting XI at the expense of Julian Brandt.
The home side go into the game as underdogs, but when the chances come they'll be hoping it's Nigerian international frontman on the end of them. The 24-year-old notched his tenth of the season a fortnight ago and has already scored goals against the likes of FC Bayern München and FC Schalke 04 this term.
It might take a bit of magic from 2014 Asian Footballer of the Year to unlock Köln's stubborn back four. With the rigours of last year's FIFA World Cup and the 2015 Asian Cup behind him, the South Korean has hit form, scoring more goals in his last nine (six) than he managed during the entire Hinrunde (five).
Peter Stöger: "We haven't lost a single match at home in the Rückrunde, so we want to keep that run going. We'll have to close down the space and try to attack as well. It'll be no use sitting back defending all the time. We have an opportunity here to reach our goal [survival]."
Roger Schmidt (head coach): "Our mentality's spot-on and we've started every game at the highest level of late. Our body language and terrific sense of unity are what make us stand out. That's what we want to bring to the table again in Cologne."
Köln, who've won only three of their 14 home games in 2014/15, got the better of TSG 1899 Hoffenheim and drew 0-0 with Hertha Berlin recently. Leverkusen have won their last seven league games on the spin, meanwhile, and could set a new club record with another three points at the RheinEnergieStadion.
Leverkusen hit back from a goal down as they chalked up an emphatic 5-1 home success earlier in the campaign. Their last trip to Köln in February 2012 also ended in victory, with the Billy Goats winning only two and drawing one of their last 11 top-flight encounters with the Werkself.
Köln: Horn - Brecko, Maroh, Wimmer, Hector - M. Lehmann, Vogt - Risse, Nagasawa - Osako, Ujah
Leverkusen: Leno - Hilbert, Toprak, K. Papadopoulos, Wendell - L. Bender, Rolfes - Bellarabi, Calhanoglu, Son - Kießling