Salary cap - Wikipedia
https://en.wikipedia.org/wiki/Salary_capIn professional sports, a salary cap (or wage cap) is an agreement or rule that places a limit on the amount of money that a team can spend on players' salaries.It exists as a per-player limit or a total limit for the team's roster, or both. Several sports leagues have implemented salary caps, using it to keep overall costs down, and also to maintain a competitive balance by restricting richer ...