Professional football contracts, baseball contracts and basketball contracts are all regularly negotiated by agents who are employed by players. Agents negotiate the terms of a sports contract and argue for the best possible deal for their clients. Signing bonuses are a common component of football contracts, baseball contracts and basketball contracts. Signing bonuses are often very large sums of money paid to a player when he signs a contract. This money is in addition to the player's annual salary, as well as any performance based bonuses that he may be eligible for under the terms of the contract. Baseball contracts and basketball contracts are sometimes guaranteed contracts, meaning that if a player is cut from the team before his contract is up, the team may still be required to pay him a salary or monetary compensation. Football contracts, on the other hand, are not guaranteed, and a player may be cut at any time and receive no further monetary payments.