ARLINGTON, Texas (AP) - Philip Rivers threw for 434 yards and three touchdowns in his first Thanksgiving game in his 14th season and the Los Angeles Chargers beat the fading Dallas Cowboys 28-6 on Thursday.

Desmond King returned an interception 90 yards for the punctuating touchdown as the Chargers (5-6) moved within 1½ games of AFC West-leading Kansas City after starting 0-4 while the Chiefs won their first five.

The defending NFC East champion Cowboys (5-6) lost their third straight by at least 20 points, all without star running back Ezekiel Elliott, in a damaging defeat for their fading playoff hopes.

Dallas, playing its 50th Thanksgiving game, finally ended a touchdown drought at a team-record 10 quarters on Rod Smith's 2-yard run early in the fourth quarter.

Keenan Allen had a career-high 172 yards on 11 catches with a touchdown, giving him 23 grabs for 331 yards and three scores in the past two games.

ARLINGTON, Texas -- After his team's third straight loss by 20 or more points, Dallas Cowboys owner and general manager Jerry Jones met with players and coaches in the locker room Thursday. But it was not to threaten the jobs of players and coaches.

Jones acknowledged that the Cowboys "are not a good team right now" after the 28-6 loss to the Los Angeles Chargers at AT&T Stadium, but he backed the players, coach Jason Garrett and the rest of the staff.

"It definitely was a message of support," veteran defensive end Tyrone Crawford said. "He told us just to sit back and take a look at ourselves, take a look at what is around us and see how blessed we are on this Thanksgiving Day. Just to go into next week knowing that we're super blessed to be in this position and take advantage of it."

At 5-6, the Cowboys are virtually locked out of repeating as NFC East champions and likely will need to win their final five games and receive help from several teams to qualify for a wild card.

It's a stunning fall from where they were a year ago, when the Cowboys were 10-1 after 11 games. It has been a precipitous drop from their 5-3 mark at the midway point of this season.

"I think you have players that have played at high levels and won games," Jones said. "But the answer [to whether the team can turn things around] is yes, as long as you have a breath to get into the playoffs. We had the Giants come up the backside here and beat the top seed. They won the whole thing five, six, seven years ago. That's what is great about this game."