"Goku's Defeat" (悟空の敗北, Gokū no Haiboku) is the second chapter of the Dragon Ball Super manga.
Beerus asks the Oracle Fish if she hasn't predicted something about a Super Saiyan God, and she confirms. Beerus gets excited, but Whis reveals that most of the Saiyans were destroyed when Freeza destroyed Planet Vegeta. However, a few Saiyans escaped and are now living on Earth, but there is one on Kaio's planet. Beerus and Whis then leave to Kaio's planet.
Meanwhile, Goku is still training alongside Bubbles on Kaio's planet. He stops, however, when King Kai senses Beerus approaching. Goku asks him what is happening, and Kaio tells him about the identity of the God of Destruction, and just then, Beerus and Whis arrive. Beerus challenges Goku to a fight, and despite the objections of King Kai, Goku accepts, transforming into a Super Saiyan. Frustrated at being unable to defeat this new powerful foe, Goku transforms higher into Super Saiyan 2, and then Super Saiyan 3, but still has no luck against the God of Destruction. Finally, bored with the fight, Beerus asks Goku to hurry up and become a Super Saiyan God. Goku gets confused by this, revealing that Super Saiyan 3 is his highest form. Irritated, Beerus vanishes and appears behind the Saiyan, knocking him out with a single blow to the back of his neck.
In another place of the universe, Champa senses Beerus fighting Goku and reveals that Beerus won't notice them on the move. When he and Vados notice that Beerus and Whis are leaving for Earth, Champa is relieved that Beerus hasn't noticed him yet.
Beerus and Whis then arrive above Earth.