Backstrom has been dealing with concussion symptoms since being struck in the head by Rene Bourque on Jan. 3.
The deal frees up cap space, around 7 million, the morning of the trade deadline and could be part of a corresponding move. Even if Backstrom is out for the rest of the regular season, he could return for the playoffs if the Capitals make it.
Backstrom has 42 points (13 goals, 29 assists) in 38 games with the Capitals this season.
More details to come.