The Detroit Lions announced on Friday that running back Jahvid Best will remain on the reserve/physically unable to perform list for the remainder of the 2012 season.

Best was limited to six games in 2011 due to concussion problems. The California product was put on the PUP list prior to the start of this season.

"There has been subsequent evaluation and consultation regarding Jahvid since our last update (October 15)," Lions general manager Martin Mayhew said in a statement Friday. "As has been the case throughout, we have deferred to the medical experts and support their current recommendation that Jahvid not return to the field this season.

"Jahvid's approach to this situation and his adherence to the process and protocol have been exemplary," Mayhew continued. "No one has worked harder or shown more dedication than Jahvid has over the past year."

"As disappointing as this decision is for us and Jahvid, we do believe it is in his long-term best interest."

A 2010 first-round draft pick of the Lions, Best has rushed for 945 yards and six touchdowns in 22 career games.