Official Fantasy Bundesliga Managers take note: bundesliga.com is on hand to provide likely line-ups as well as injury and suspension news ahead of Matchday 5.
1. FC Köln are riding high after three straight wins - most recently a mightily impressive 3-1 success at FC Schalke 04 - and will be hopeful of at least extending their unbeaten start to the season to five games. Injuries to Leonardo Bittencourt (23 points so far) and Dominic Maroh will not be easy to compensate for, however.
RB Leipzig's adjustment to top-flight football has appeared seamless thus far. The newcomers have already taken points off Borussia Dortmund (1-0), Hamburger SV (0-4) and Borussia Mönchengladbach (1-1), and they will fancy their chances of upsetting another traditional German powerhouse this weekend - especially if in-form striker Timo Werner (30 points so far) can prolong his rich vein of form.
The game kicks off at 17:30CEST/15:30GMT on Sunday 25 September at the RheinEnergieStadion. Click here to find out where to watch the game where you are.
Köln possible line-up: Horn - Sörensen, Mavraj, Heintz, Hector - Lehmann, Höger - Risse, Zoller - Osako, Modeste
Absentees: Kessler (light training), Maroh (rib), Bittencourt (thigh), Rudnevs (muscle)
Coach: Peter Stöger
Leipzig possible line-up: Gulacsi - Bernardo, Orban, Compper, Halstenberg - Ilsanker, Demme - Kaiser, Sabitzer - Werner - Poulsen
Absentees: Klostermann, Papadopoulos (both knee), Forsberg (concussion)
Coach: Ralph Hasenhüttl