The NCAA and plaintiff attorneys in the most significant antitrust case in college sports history have agreed to amended language in a settlement that the two parties hope will be approved by a federal judge as early as this week.

Three weeks after being asked to modify a $2.78 billion deal that would dramatically change college sports, attorneys redefined the word “booster” in the plan.

Plaintiff attorneys have filed a brief with a California district court in the House settlement case, clarifying language that limits compensation from third-party entities to athletes under the new revenue-sharing model. Attorneys made slight adjustments ...