Oklahoma City Thunder: Oct. 31 also a big day for Cole Aldrich, Reggie Jackson, Lazar Hayward

If that doesn't occur, Harden and Maynor will become restricted free agents on July 1, 2013. Restricted free agents are allowed to negotiate with other teams, but the player's current club can retain his rights by matching another team's offer.

Halloween also holds significance for center Cole Aldrich, guard Reggie Jackson and forward Lazar Hayward. That is the final day NBA teams can exercise their team option on players.

If a team opts not to pick up a player's option, that player will become an unrestricted free agent after the season. Unrestricted free agents are free to sign with any team, including the Thunder.

If OKC decides to pick up Aldrich's option, he would make $3.2 million next season. Jackson would make $1.3 million next season, and Hayward would make $2.1 million.

It's worth noting that because of the league's new collective bargaining agreement, more teams are not doing extensions and not exercising options due to more severe tax penalties.

ESPN FILM ‘BROKE' RESONATES WITH PLAYERS

Maynor was among several Thunder players that watched Tuesday night's broadcast of “Broke,” an ESPN production as part of its “30 for 30” series. The 1 1/2 hour documentary interviewed several current and former athletes who have had significant problems with money.

Maynor said the messages in the film were critical for professional athletes in all sports.

“I think that was a good show for a lot of people (Tuesday) night, and I hope everybody was watching it,” Maynor said.

“With all the money that guys get, not just in this league but in any sport, you got to be careful with the people around you. You got to be careful about how you take care of your money if you want to have some money after you play.”

The league annually addresses potential financial pitfalls during the rookie transition program and at mandatory NBA meetings before the start of every season.