National Football League

Eagles' Jackson tears Achilles' tendon

Published Jun. 1, 2010 1:00 a.m. ET

foxsports

Eagles defensive back Marlin Jackson has ruptured his right Achilles' tendon an indoor practice.

Jackson, who was competing for a starting spot at free safety, was hurt on Tuesday. An MRI exam revealed the extent of the injury, the team said.

A 2005 first-round draft pick by the Indianapolis Colts, Jackson signed a two-year deal with Philadelphia in March. He is coming off a pair of season-ending knee injuries.

Jackson missed the second half of 2008 with a torn ACL in his right knee and returned in 2009 before tearing the ACL in his left knee in a November practice.