The Kings also recalled defenceman Slava Voynov from their AHL affiliate in Manchester on Sunday.
Flyers forward Zac Rinaldo levelled Doughty with a shoulder-to-chest hit just 24 seconds into Los Angeles' 3-2 overtime victory on Saturday night. After the game, the Kings said Doughty would be out for at least a week.
Doughty signed a US$56 million, eight-year contract last month, putting the 21-year-old player among the NHL's highest-paid defencemen. He was a Norris Trophy finalist in 2010.