O’Brien, 31 (8/9/83), has recorded 13-79=92 points with a +6 rating and 916 penalty minutes (PIM) in 537 career NHL games. O’Brien began his NHL career with the Ducks, making his debut in 2006-07 (2-12=14 points with a +5 rating in 62 games). He went on to play for Tampa Bay, Vancouver, Nashville, Colorado, Calgary and Florida, compiling career highs in goals (4) and points (21) in 2007-08 with the Lightning. The 6-3, 230-pound defenseman has also appeared in 40 career Stanley Cup Playoff games with Tampa Bay, Vancouver and Nashville, scoring 2-3=5 points with 79 PIM.
Selected by Anaheim in the eighth round (250th overall) of the 2003 NHL Draft, O’Brien led the Ducks with 140 PIM during his rookie season in 2006-07.