However, a contract that only requires legal performance on the part of each party, such as for example. B the sale of decks of cards to a known player where the game is illegal, is nevertheless enforceable. However, a contract directly related to the law on gambling, such as for example. B the repayment of gambling debts (see direct cause), does not comply with the legal standards of opposability. Therefore, an employment contract between a blackjack dealer and a speakeasy manager is an example of an illegal agreement and the employee is not validly entitled to his expected salary if gambling is illegal under this jurisdiction. . . .