The Philadelphia Eagles have traded running back Bryce Brown to the Buffalo Bills in return for a conditional 2015 fourth-round pick that can become a 2016 third-round pick.

The 22-year-old adds depth to Buffalo's backfield and, while two of their top running backs are both entering the final years of their contracts, Brown has two years remaining on his rookie deal.

Brown saw his playing time reduced last season after two years with Philadelphia, making just one start in 16 games with 314 yards and two touchdowns over the course of the campaign.

The Eagles acquired Darren Sproles in a trade deal earlier this off-season, which ultimately pushed Brown further down the depth chart.