J.J. Watt has announced his retirement from the NFL, indicating that Week 16 was his final home game.

The game was the first his son Koa had ever attended.

“Koa’s first ever NFL game. My last ever NFL home game,” Watt wrote. “My heart is filled with nothing but love and gratitude. It’s been an absolute honor and a pleasure.”

Watt was NFL Defensive Player of the Year three times.

The Arizona Cardinals are expected to move on from general manager Steve Keim this offseason.

It was announced last week that Keim was taking a medical leave of absence from the team. The thinking around the NFL is that the Cardinals will have a new GM soon.

In Keim's absence, general manager duties are being split between VP of player personnel Quentin Harris and VP of pro personnel Adrian Wilson.

Arizona Cardinals general manager Steve Keim is taking a leave of absence for health-related reasons, the team announced Wednesday.

Vice president of player personnel Quentin Harris and vice president of pro personnel Adrian Wilson will handle Keim's duties on an interim basis.

The team said it will have no further comment "out of respect for privacy -- which is required by law."

Tests confirmed that Arizona Cardinals quarterback Kyler Murray suffered a season-ending torn ACL in Monday night's game against the New England Patriots, a source told ESPN's Adam Schefter on Tuesday.

Murray went down with the noncontact injury after a 3-yard run to the right on the third play of the game. The clock read 13:39 while Murray was attended to by team athletic trainers and doctors. 

Arizona Cardinals quarterback Kyler Murray was carted off the field with a noncontact knee injury less than 90 seconds into Monday night's game against the New England Patriots.

Murray is scheduled to undergo further testing on Tuesday, including an MRI, but a source told ESPN there is "little doubt that it's torn," referring to an ACL.

In his postgame news conference, Arizona coach Kliff Kingsbury said Murray's injury "doesn't look good, but we'll know more in the morning."

Kyler Murray responded to former teammate Patrick Peterson after the Minnesota Vikings cornerback criticized the Arizona Cardinals quarterback on his podcast.

"Kyler Murray don't care about nobody but Kyler Murray," Peterson said. "That's just a matter of the fact."

Peterson and his co-host, Bryant McFadden, were discussing whether they believed Kliff Kingsbury would end up being the "scapegoat" for an Arizona season gone awry. The Cardinals are currently on their bye week at 4-8.

In a tweet posted just hours after a clip from Peterson's show, "All Things Covered," was released, Murray wrote: "This isn't true...you on some weird sh-- @P2 you got my number, if you really felt like this as a 'big bro' or 'mentor' you supposed to call me and tell me, not drag me so your podcast can grow...."