Roadwork necessary while boxing?

[Aggression]

Is it absoloutly necessary to do roadwork while training in boxing. I have been thinking about this, whith all the time spent sparring, bag work, pad work, rope work, speed bag, double end bag, shadowboxing, etc. would you really need to run x amount of miles every day? Isn't that overkill? Are there any pros that don't do any roadwork?

[KAEW44]

Its not essential, but its good to get cardio and to do different types of it because when your in the ring in a real competing event you will gas 4times faster than any training you do.