An option contract, or simply option, is defined as "a promise which meets the requirements for the formation of a contract and limits the promisor's power to revoke an offer". Option contracts are common in professional sports. An option contract is a type of contract that protects an offeree from an offeror's ability to revoke their offer to engage in a contract. Under the common law, consideration for the option contract is required as it is still a form of contract, cf. Restatement (Second) of Contracts § 87(1). Typically, an offeree can provide consideration for the option contract by paying money for the contract or by providing value in some other form such as by rendering other performance or forbearance. Courts will generally try to find consideration if there are any grounds for doing so. See consideration for more information. The Uniform Commercial Code (UCC) has eliminated a need for consideration for firm offers between merchants in some limited circumstances. Introduction An option is the right to convey a piece of property. The person granting the option is called the optionor (or more usually, the grantor) and the person who has the benefit of the option is called the optionee (or more usually, the beneficiary). Because options amount to dispositions of future property, in common law countries they are normally subject to the rule against perpetuities and must be exercised within the time limits prescribed by law. In relation to certain types of asset (principally land), in many countries an option must be registered in order to be binding on a third party. Application of option contract in unilateral contracts The option contract provides an important role in unilateral contracts. In unilateral contracts, the promisor seeks acceptance by performance from the promisee. In this scenario, the classical contract view was that a contract was not formed until the performance that the promisor seeks was completely performed. This was because the consideration for the contract was the performance of the promisee. Once the promisee performed completely, consideration was satisfied and a contract was formed and only the promisor was bound to his promise. A problem arose with unilateral contracts because of the late formation of the contract. With classical unilateral contracts, a promisor can revoke his offer for the contract at any point prior to the promisee's complete performance. So, if a promisee provides 99% of the performance sought, the promisor