O.J. Simpson is a bloated shell of his former self after years in prison

The years behind bars have not been kind to one-time NFL star O.J. Simpson. The 65-year-old former Buffalo Bills running back and part-time movie actor looked like a shell of his former self  — a bloated shell — when he walked into court in Las Vegas Monday to reverse a conviction that put him behind bars.

Simpson added weight and gray hair to his once-world-class physique when he was escorted into Clark County court by guards before nodding at some spectators he recognized in the gallery. The shackled Simpson wore simple, blue jailhouse clothing.

The Juice is tossing a Hail Mary courtroom bid to get his armed robbery and kidnapping convictions from 2008 set aside.

The Heisman Trophy winner is claiming that ineffective work by former defense lawyer Yale Galanter got him convicted on Oct. 3, 2008 and sentenced to nine to 33 years behind bars.

Simpson was sent away for engineering an armed confrontation — on Sept. 3, 2007 at the Palace Station Hotel & Casino — against sports memorabilia collectors who had O.J. momentos.

The Juice had claimed the goods were stolen and he was just taking back what was rightfully his.

Simpson will claim that he told Galanter of his plans to get his stuff back, and the lawyer gave him the OK.

The Juice is also expected to testify that Galanter did not tell him about a plea-bargain offer on the table from Clark County prosecutors.