But how was Havertz's overall performance?
Havertz started off this match in a similar fashion to he finished his last against Schalke; barely involved.
The key creative tasks were taken on by Leon Bailey on the left and Moussa Diaby on the right who gave the Koln back line a torrid time with their pace and movement.
But Havertz came to life towards the end of the half; he linked superbly with Diaby but with the goal at his mercy hooked his shot wide.
⚽ And minutes later Bailey hit the goal line and his cutback found Havertz completely unmarked, with no Koln player anywhere near him, to slot into the corner with his left foot from around seven yards.
Koln came back into the game strongly in the second half, pulling a goal back, but their pushing left gaps and Havertz was able to get more of a foothold.
His pass through to Paulinho should have been converted by his team-mate, then an outrageous chest and overhead kick went just over the crossbar as he went on the hunt for another goal.
And he was provided with an assist, too, as he laid on Diaby to score a brilliant solo goal to clinch victory for his team and push them back into the Champions League positions.
〽️ Rating Week-on-Week
In his last outing against Schalke and coming off an injury that Leverkusen were concerned would see him sit out the season, Havertz suffered a really poor game; he was barely involved in the contest at all.
He recorded an 6.2 FC Rating and was taken off with 20 minutes remaining - Leverkusen actually drastically improved when he departed.
But against Koln his display was much improved, scoring to make it 2-0 and providing what was a generous assist as Diaby did all the work for the clincher, earning himself a 8.1 FC Rating.
Kai Havertz match stats
|FC Rating||8.1||FC Man of the Match|
|Touches In Box||7||Rank #1|