A UFA at the conclusion of last season, he is in the midst of the second of a three-year contract he signed with Ottawa on 7/1/14.
2014-15: Appeared in his most regular-season games since playing 81 contests as a rookie with San Jose in 2005-06 ... Averaged greater than 18 minutes of time-on-ice for the seventh consecutive season while averaging the second most of his career with 18:35 ... Played in the 600th game of his NHL career on Jan. 23 at Tampa Bay (4-3 SO loss) ... Became the 800th player in NHL history to record 200 assists for his career when he did so on Jan. 30 vs Tampa Bay (5-3 win) ... Was one of two Senators (Karlsson) to represent his country at the XXII Olympic Winter Games in Sochi, Russia.
Career game highs: Goals: 3 (2x) last: 3/6/12 at Tampa Bay (7-3 win); Assists: 3 (4x) last: 3/5/09 vs Minnesota (with San Jose); Points: 4, (3-1), 3/6/12 at Tampa Bay (7-3 win)
Played in NHL All-Star Game (2012)
Missed majority of 2003-04 due to knee injury vs. Calgary, October 11, 2003. Traded to Ottawa by San Jose with Jonathan Cheechoo and San Jose's 2nd round choice (later traded to NY Islanders, later traded to Chicago - Chicago selected Kent Simpson) in 2010 Entry Draft for Dany Heatley and Ottawa's 5th round choice (Isaac MacLeod) in 2010 Entry Draft, September 12, 2009. Signed as a free agent by Ceske Budejovice (CzRep), October 28, 2012.