Haralson (6-0, 255) played all 16 games for the Saints in 2013, notching 30 tackles and 3.5 sacks. He made eight starts for New Orleans — one at strong-side linebacker and seven at weak-side linebacker.
Before being traded to the Saints, Haralson played seven seasons (2006-2012) with San Francisco.
The 49ers received a 2014 seventh-round pick from New Orleans (No. 242) in the trade for Haralson.