It's possible that O.J. Simpson, who is to be released on parole as early as October, has been making $10,565 a month since he turned 65, ESPN reported this week.

That's because the now 70-year old is drawing an NFL pension that, under a complicated formula, has granted him more than $600,000 over his past 57 months in prison. This week, USA Today reported that Simpson's lawyer said the former Gridiron and movie star has money from a pension plan in which he invested $5 million years ago.

The NFL calculates pensions based on the number of seasons played and at what age a player decides to start collecting. Simpson played for 11 seasons from 1969 to 1979, and likely waited until he was 65, not 55, to start accruing that income.

O.J.'s monthly allocation is, by any measure, a great retirement package. But for most NFL players, the number won't be so high. The average player only last 3.5 seasons in the league, and many probably need their pension as soon as they can access it. One out of six NFL retirees declare bankruptcy.