What injury did Steve suffer during the rumble in the outsiders?

In S.E. Hinton's novel "The Outsiders," Steve Randle suffers a serious injury during the rumble when he is struck in the head with a broken bottle. This injury leaves him temporarily incapacitated, highlighting the chaos and violence of the conflict between the Greasers and the Socs. The rumble serves as a pivotal moment in the story, emphasizing the harsh realities faced by the characters.