Sure, you know how to punch and kick, but how well can you fight at shorter range? Can you defend yourself when the fight turns to grappling? When both you and your opponent are rolling around and wrestling on the barroom floor, are you confident that you can win the fight? If you doubt your chances at close quarters, then you are not prepared for the reality of streetfighting. That's because, as Ned Beaumont points out here, in the real world, fights frequently begin with or turn into bouts of wrestling, and the antagonist with the greater expertise in wrestling is most often the victor. The truly tough customer is the person who thoroughly conditions himself, diligently studies and practices wrestling holds and techniques, and then makes full use of them in rough-and-tumble situations. Learn to prevail in the street by reading this book!
Beaumont is also the author of   Championship Streetfighting: Boxing as a Martial Art

https://book4you.org/book/16665019/2f077e