The Vikings placed ailing wide receiver Percy Harvin on season-ending injured reserve.

The move was announced Wednesday afternoon after Harvin missed another practice because of a severely sprained left ankle that has kept him out of the last three games.

After an outstanding first half, Harvin's season deteriorated quickly. He was hurt at Seattle on Nov. 4.

Akers' struggles

After missing a winning field goal in overtime in two of the last four games, David Akers and his fellow special-teamers on the 49ers (8-3-1) are as perplexed as anybody about what has gone wrong. The former Eagle and six-time Pro Bowl kicker is 21 for 30 on field goals this season.

Just a year ago, Akers set an NFL single-season record with 44 field goals. He missed only eight kicks - and none of them of such magnitude.

Akers missed a 51-yard attempt with 4 minutes, 11 seconds remaining in overtime of San Francisco's 16-13 loss at St. Louis on Sunday. The kick sailed wide right by inches and came only two weeks after he missed left on a 41-yard try - also in overtime against the Rams before that game ended in a 24-24 tie.

"I have no idea," Akers said about what's wrong. "I've done it for a lot of years. Lot I've gone through. Some I've missed. I don't really contemplate on those issues. If I've noticed something, I probably would have made a correction."

In the Sanchise's hands

Rex Ryan gathered his three quarterbacks and told them he had made up his mind: He's sticking with Mark Sanchez.

The Jets coach spent two days weighing his options after benching Sanchez on Sunday against Arizona, talking to as many people within the organization as he could before deciding.

"I have to get this decision right," Ryan said, "and I believe I have."

So, it will be Sanchez and not Greg McElroy or Tim Tebow on Sunday when the Jets take on the Jaguars in Jacksonville.

In other QB news:

The Steelers' Ben Roethlisberger returned to practice and appears on track to return this weekend against San Diego. Roethlisberger hasn't played since spraining his right shoulder and dislocating a rib vs. Kansas City on Nov. 12.

Arizona's John Skelton will start when the Cardinals play in Seattle. Coach Ken Whisenhunt announced after Wednesday's practice that he would replace rookie Ryan Lindley after two starts.

Spot in Canton for RGIII

Robert Griffin III already has a place in the Pro Football Hall of Fame.

The Hall collected the jersey and cleats worn by Griffin when he set the NFL single-season record for yards rushing by a quarterback in the Redskins' win over the Giants. Griffin ran five times for 72 yards in the 17-16 victory Monday night, giving him 714 yards on the season and topping the mark of 706 set last year by Cam Newton.

This article contains information from the Associated Press.