The match between Bayer Leverkusen and Cologne ended in a 2-0 victory for Leverkusen, with goals from Bortz and Wirtz, while Diaby's goal kept his unbeaten streak at the club intact.

Bayer Leverkusen has been struggling this season, but they have managed to maintain their unbeaten streak against their rivals. This was evident in Leverkusen's performance on Saturday, as they were able to keep their opponents at bay with both goals scored by Bortz and Wirtz.

It was a significant achievement for Leverkusen, who had previously lost three straight matches against their rivals. However, Leverkusen proved that they can still compete with the best teams in Germany, despite facing some tough opposition.

Wirtz' goal was particularly impressive, as he has become one of Leverkusen's key players during the season. The German international has been instrumental in helping Leverkusen secure victories against strong opponents such as Bayern Munich and Borussia Dortmund.

Diaby's goal also played a crucial role in Leverkusen's success. The French midfielder has been a key player for Leverkusen throughout the season, and he has contributed to their unbeaten streak.

Overall, Leverkusen's performance against Cologne was a testament to their resilience and determination. They will need to continue playing well in upcoming matches to stay in contention for a place in the Champions League next season.