Professional baseball player contracts often come with a signing bonus. A signing bonus is a monetary upfront payment awarded to a baseball player who signs a baseball contract. Signing bonuses are often very large amounts of money, often much more than a million dollars for popular players. This money is given to a player simply for signing a contract, and is paid in addition to the large annual salary many baseball players often make. In addition, baseball player contracts often allow for monetary bonuses for exceptional performance, allowing players to make even more money per year. Because of the large amounts of money involved, professional baseball has many critics who feel that players are overpaid and showered with unnecessary extravagances. Many baseball players make much more money than doctors, senators, and even the President of the United States. Sports agents are instrumental in negotiating expensive baseball player contracts, and they receive large fees themselves for their work.