Brown agrees to 3-year deal with Chargers
Chargers general manager was in the Colts' front office when they took Brown in the first round of the 2009 draft.
Brown ran 102 times for 537 yards and a career-high six touchdowns in 2013. In five seasons he has 551 carries for 2,377 yards and 17 touchdowns.
Tuesday's deal came on the first day of free agency.
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