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

The Bills and Eagles also swapped 2014 seventh round picks.

Brown adds depth to the Bills' backfield as C.J. Spiller and Fred Jackson enter the finals seasons of their contracts.

Brown saw reduced playing time last season under first-year Eagles coach Chip Kelly. In 16 games, including one start, he rushed 75 times for 314 yards with two touchdowns. Brown figured to have his playing time further reduced due to the acquisition of Darren Sproles.