The driver was operating an M15 bus in Lower Manhattan when police say Rashon Eagle, 43, punched him in the head and pulled a knife on him.
The 58-year-old driver says he managed to disarm the suspect and restrain him.
Eagle faces charges including assault and menacing.
The bus driver suffered several bruises on his face and scratches on both of his eyes. He was taken to Bellevue Hospital and is expected to be okay.
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