Dragon Ball Manga Vol.4 Chapter 45: The Great Mid-Air Battle!!
Summary
Gokū eventually wakes up from his stupor, only to be hit in the spine of his neck by Namu's aerial attack. As everyone is shocked and convinced that the young boy won't be able to get up by the end of the 10 count, Goku's still surprising resilience makes him stand up and shake off the pain, much to everyone's surprise. A disbelieving Namu decides to take off again and attack Goku, but the young boy also manages to get airborne, leading to a battle between the two fighters.
When Gokū lands faster than Namu, the lone villager, convinced that he will win fighting the boy on the ground, he continues to attack with his Tenkū Pekejiken again, but Gokū manages to quickly move out of the way just in time to land. critical kick to Namu, knocking the villager out of the ring and Gokū won. While Yamcha, Kulilin, and the rest of the audience react in awe of Goku's victory, Jackie Chun becomes worried about losing to him in the final round.