What sport is Ruud Gullit known for
Ruud Gullit is best known for his career in professional football, most notably for his time with Dutch club Ajax.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: What sport is Ruud Gullit known for
### Input: 
### Response: Ruud Gullit is best known for his career in professional football, most notably for his time with Dutch club Ajax.