Chargers general manager Tom Telesco 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.
Talk about the signing of running back Donald Brown inside the message boards.
Brown Agrees to 3-Year Deal
SD Super Chargers Top Stories
Week 8: FanDuel & DraftKings DFS ProjectionsWeek 8 NFL DFS projections for every single relevant player so you can rake in the cash on FanDuel & DraftKings. It's all provided by senior Fantasy Football expert Shawn Childs!
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2016 Fantasy Football Rest of Season RankingsNeed to revamp your Fantasy Football team? Or perhaps your league redrafts at the mid-way point of the NFL season? Check out our Rest of Season Fantasy Football Rankings!
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Daily Dr. Roto: Thursday Night PreviewDr. Roto previews Thursday Night Football's matchup between the San Diego Chargers and Denver Broncos from a Fantasy Football perspective!
3 Keys To Victory: Broncos vs. ChargersThe Broncos are coming off their first loss. On their first divisional road trip of 2016, what must the Broncos do to emerge victorious? Chad Jensen turns to the film room.
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MHH Predicts: Broncos vs. ChargersWill the Broncos rebound on a short week or will the losses start to snowball?
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