Hartmut Nickel
Hartmut Nickel was a German ice hockey player, who competed for SC Dynamo Berlin between 1963 and 1974. He played for the East Germany national ice hockey team at the 1968 Winter Olympics in Grenoble.
Nickel was popularly called "Father Polarbear" at Eisbären Berlin. After the passing of Nickel in 2019, the northern curved end of the Mercedes-Benz Arena, with terracing for active supporters of Eisbären Berlin, was officially named the Hartmut Nickel Curve, at the request of club supporters.