The partner left the magic circle firm after more than 23 years to help drive forward Cleary’s push into the German corporate market.
Andreas Fabritius, Freshfields co-head of corporate, told The Lawyer: “We are sad that he’s going as he was a nice man and has built the practice to where it is today.
“But we still have six corporate partners in Cologne, giving us a good base, and across Germany we have 58 corporate partners,” he added.
Cleary and Freshfields are still in talks about when Sieger will be free to join the US firm. It is believed he has a three-month notice period. It is not expected that Sieger will take any associates with him.