DeSean Jackson returned to practice and looked sharp catching the football Saturday.

Jackson also fielded punts in the morning workout at Lehigh University

The Eagles protected themselves against a setback in newly acquired wide receiver Steve Smith's rehab from micro-fracture surgery by placing him on the Physically Unable to Perform (PUP) list.

The former New York Giant can come off the list at any time in training camp. The way it works is if Smith begins the season on PUP he cannot play for the six weeks of the season. After the six-week mark the Eagles would have have a three-week window to decide whether to activate Smith or shelve him for the season on injured reserve.

The Eagles are evaluating Smith, who participated in a lengthy running and conditioning workout Saturday.

Additionally defensive tackle Mike Patterson, who suffered a seizure, was back on the field doing conditioning work along with defensive end Brandon Graham.

The Eagles also released defensive tackles Brandon Collier (ankle, injury settlement) and Charlie Noonan, plus rookie quarterback Jerrod Johnson and signed offensive tackles Joe Toledo and Spencer Johnson.

Offensive line starters Jamaal Jackson and Ryan Harris didn't practice Saturday.

Defensive end Juqua Parker was helped off the field with a right calf injury.