After every season in the NBA there are some players whose contracts run out. When this happens, each player has the option of trying to make a deal with their former team, or they can declare free agency. If this person does declare free agency, he can be signed by any team who has enough money or roster space to satisfy his needs.
The most famous free agents before this next upcoming season are listed for you. Some of these players are very talented, and worth being signed, but others are on their way out of the league and into retirement.