GLENDALE, Ariz. — Arizona Cardinals quarterback Carson Palmer left with an injured left knee early in the third quarter of Sunday’s game against the St. Louis Rams.

Palmer appeared to hurt himself while planting his leg trying to avoid a sack. He was able to walk off the field, but was taken to the locker room on a cart after that.

“We don’t know anything about Carson’s injury or the length, whatever it is yet,” Arizona coach Bruce Arians said. “It is obviously a knee. He will be evaluated and get an MRI and everything and we will know something by tomorrow and hopefully by Tuesday. ‘’

Palmer missed three games earlier this season with a damaged nerve in his throwing shoulder.

On Friday, he signed a three-year contract extension worth a reported $50 million with $20.5 million guaranteed.

Arizona trailed 14-10 when Palmer left the game with 11:28 to play.

TV

CBS apologizes for airing Harbaugh comments: In Baltimore, CBS apologized to the Ravens after Sunday’s 21-7 victory over Tennessee for airing comments made in the locker room by coach John Harbaugh.

“The comments made by John Harbaugh in the locker room following today’s win over the Titans were meant for Ravens players and coaches only,” Ravens Senior Vice President Kevin Byrne said in a statement. “The TV crew that was in the locker room was told by coach Harbaugh that it could not broadcast what he was about to say.

“When coach Harbaugh finished talking about various things happening around the NFL and in the AFC North, he told the crew that it could now use what he was going to say. Inexplicably, CBS-TV then aired comments coach Harbaugh specifically said were not to leave the locker room.

“CBS-TV immediately pulled the video and apologized to the Ravens.”

Chiefs

Backup Gray out for year after hurting knee: In Orchard Park, N.Y., Kansas City Chiefs backup running back and special teams player Cyrus Gray will miss the remainder of the season after tearing a knee ligament in a 17-13 win over the Buffalo Bills on Sunday.

Coach Andy Reid announced the injury following the game without specifying which knee Gray hurt. Reid also announced backup tight end Demetrius Harris will miss a few weeks after breaking a bone in his foot before the game.

Reid didn’t reveal when or how Harris was hurt.

Tight end Anthony Fasano sustained a bruised knee, while receiver Junior Hemingway did not return after bruising his hip covering a punt return in the fourth quarter.

For Buffalo, backup receiver Marquise Goodwin did not return after hurting his ribs during a kickoff return.

in the fourth quarter.