The 28-year-old joins Koln for an undisclosed fee and has signed a contract that will keep him at Koln until the end of the season.
“We are glad we have been able to complete the transfer of Christian Eichner,” said Koeln’s general manager Claus Horstmann on his club’s official website.
“Christian was our number one target for the left-hand side of our defence. We are convinced that he will take us forwards.”
