[SOLVED] Elements Of a Contract

It is fairly common today to read of professional athletes refusing to sign contracts with their teams until they are given higher salaries. These demands, which can be for millions of dollars, are regarded by team owners as a form of blackmail. The players, however, believe that their skills are a salable commodity and that they are justified in getting as high a salary as they can bargain for. Are such demands justifiable? Are they so only in certain circumstances? Explain.