Kings defenseman Drew Doughty left Wednesday's game against the Carolina Hurricanes after the first period with what the Kings described as an upper-body injury.
Doughty, a Norris Trophy finalist last season, was on the ice for the final minute of the first period but did not take the ice for the start of the second period after an apparent collision with Carolina's Erik Cole.
The Kings announced that Doughty was unlikely to return for the rest of the game. Doughty's status for Thursday's game at Phoenix is not yet known.
The No. 2 overall pick in the 2008 Draft, Doughty has played 168 NHL games over three seasons and had 16 goals and 43 assists in 82 games last season.