New Orleans Saints linebacker Jonathan Vilma was placed on injured reserve Wednesday, ending the veteran's season and leaving his future up in the air.

Cornerback Chris Carr, who was initially cut to make room for Vilma on the active roster, was re-signed this week.

The 31-year-old Vilma, a Saints team captain from 2009-12 is in the final year of his contract. He's been with New Orleans since 2008, when they acquired him in an offseason trade with the New York Jets.

Fittingly, Vilma saw his only playing time of this season against the Jets last Sunday, when he played just 12 snaps in his first time back on the active roster.

Vilma, whose left knee has troubled him for years, was placed on short-term injured reserve in the preseason after undergoing arthroscopic surgery in August to clean up the knee, which swelled up after a training camp scrimmage.

Vilma was designated to return from injured reserve by the Saints, who are allowed to give one player per season that status.

The Week 9 game against the New York Jets was the first time Vilma was allowed to be activated. With David Hawthorne and Curtis Lofton starting, Vilma played in only a few designated situations and made one tackle.

"I think tomorrow (Monday) will be a good test and Wednesday when we come back to practice," he said after the Jets game. "It will be another big test to see how the knee feels."

Added Saints coach Sean Payton on Monday: "He looked OK, rusty."

Vilma has long since dealt with knee injuries, which landed him on the physically-unable-to-perform list last season. He has undergone four procedures on the knee since Nov. 2011. He has not played a full 16-game season since 2010.

Vilma has also had issues with his right knee in the past, which ended his 2007 season with the Jets.