O.J. Simpson's lawyers have asked he receive the minimum sentence of six years in prison for his October robbery and kidnapping conviction, calling a recommendation of 18 years "inappropriate and knee-jerk."

Simpson, famously cleared of double-murder charges in the "Trial of the Century" in the 1990s, was found guilty on October 3 in the armed robbery of a pair of memorabilia collectors at the Palace Station hotel and casino in Las Vegas.

The 61-year-old former football star and his co-defendant, Clarence "C.J." Stewart, are scheduled for sentencing today and could face life in prison for their conspiracy, burglary, kidnapping, robbery and assault convictions.

"Simpson has never previously been convicted of a crime. Thus, he now stands before the court as a first-time offender," defense attorney Gabriel Grasso told the judge in court papers filed in advance of Friday's sentencing hearing.