Marozsan was operated on on Tuesday on the injured right knee.
The 30-year-old midfielder at Olympique Lyon now has to pause for at least half a year.
Marozsan suffered the injury in mid-April in the 2: 3 of the DFB women in the World Cup qualification in Serbia.
The 2016 Olympic champion also misses the Champions League final against FC Barcelona (May 21) in Turin.
In her career, the 111-time international had to survive many health problems.
In summer 2018 she suffered a lung embolism on both sides.
At the 2019 World Cup, after a broken toe in the opening game, she was only able to participate again at the quarter-finals against Sweden (1: 2).