In a document obtained by The Associated Press, Dr. Hunt Batjer and Dr. Richard Ellenbogen say that one player actually re-entered the game and another refused to leave the sideline.
The doctors did not identify the players, but one was Green Bay tackle David Bakhtiari, who went into the game for an extra-point try despite being examined for a concussion and not cleared.
The other player was Saints cornerback Keenan Lewis, who remained on the sideline but did not get back on the field.
The NFL’s Madden Rule requires a player diagnosed with a concussion to be taken to the locker room or another quiet location. No fines will be imposed for the violations.
49ERS: It appears unlikely that cornerback Carlos Rogers will play Sunday in the divisional playoffs against the Carolina Panthers.
The former Butler High star was sidelined the entire week of practice with a hamstring injury that kept him out of last week’s wild-card win over Green Bay. He originally suffered the injury in the regular-season finale at Arizona.
On Thursday, defensive coordinator Vic Fangio said Rogers would have to practice if he wanted to play against the Panthers.
“I don’t know what the percentages are; I suppose there is a chance,” coach Jim Harbaugh said Friday about Rogers playing. “He will be questionable for this game.”
CHARGERS: Center Nick Hardwick was cleared to work out five days after sustaining a concussion and was a limited participant as San Diego practiced for the final time for its divisional-round playoff game at Denver on Sunday.
Running back Ryan Mathews didn’t practice all week and also was listed as questionable. He’s been bothered by the ankle injury since a victory against Oakland on Dec. 22.
RAIDERS: Tony Sparano has signed a two-year contract to remain the team’s assistant head coach/offensive line coach. Sparano had been mentioned as a candidate to join new coach Lovie Smith’s staff in Tampa Bay.
BILLS: Re-signed veteran punter Brian Moorman to a one-year contract extension that locks him up through next season.
In 11 games, Moorman finished 30th in the NFL with 36.6 net yards per punt and landed 16 inside opponents’ 20.
VIKINGS: When the Minnesota Vikings play at TCF Bank Stadium this fall, single-game tickets will be in shorter supply.
The move from the Metrodome means a 12,000-seat loss of capacity. Vikings executive director of communications Jeff Anderson said Friday that each of the 52,000 seats at TCF Bank stadium is currently slotted for a season-ticket owner. The amount of single-game seats available will depend on the number of season-ticket renewals, usually about 90 percent from year to year.
TCF Bank Stadium has 7,000 fewer lower-level seats than the Metrodome did, so some fans were moved to the upper deck.
Ticket prices will also rise with the stadium switch.
Season-ticket owners who don’t purchase seats the next two years will keep priority over first-time buyers when the new stadium opens in 2016.