Peter Chiarelli says Nathan Horton ‘a longshot’ to return this season, gives updates on Tuukka Rask, Johnny Boychuk, Adam McQuaid » Kimmo Timonen, Ilya Bryzgalov, Nathan Horton

Nathan Horton has not played since Jan. 22. (AP)

Nathan Horton has not played since Jan. 22. (AP)

Philadelphia Flyers defenseman Kimmo Timonen (44) makes a stick-save ahead of goalie Ilya Bryzgalov, rear, on a shot by Boston Bruins right wing Nathan Horton (18) during the third period of an NHL hockey game in Boston, Thursday, Oct. 6, 2011. (AP Photo/Charles Krupa)