Wide receiver DeSean Jackson left Saturday afternoon's practice with a back injury. As practice ended, Jackson was still being evaluated by the team's medical staff. Here are the other notes from the afternoon practice session. For more Eagles news, follow us on Twitter @EaglesInsider...

"Team is out in force in shorts and shells for the afternoon practice."

"Newest Eagle WR Kelley Washington in action. No sign of J.J. Arrington yet."

"First-team nickel defense ... Sims and Bradley at LBs."

"Sims' closing speed is something that has to be seen in person to appreciate."

"Maclin nice tip-toe grab along sideline ... Samuel in coverage."

"OK, DeSean just reminded us that his speed is breathtaking ... catches short pass over middle and pulls away from Fokou."

"Kurt Coleman nice pick vs. Michael Vick in team blitz drill."

"7 on 7 drill ... Bradley nice breakup on short pass to Celek."

"Another nice breakup by Bradley on pass to Celek ... Maclin wiiiide open."

"Impressive performance by defense ... blanket coverage forcing Kolb to hold ball."

"Quintin Demps athletic interception, tipped with one hand in air and brought it down ... Vick's pass intended for Cooper."

"Ellis Hobbs fights to break up pass for DeSean deep down left sideline from Kolb."

"Kolb perfect deep ball down right sideline to Maclin despite good coverage from Samuel."

"Kolb scrambles out of bounds after a gain of 8, which he points out to Gaither who calls him crazy and said it was a coverage sack."

"Team drill ... Celek and Kolb connect deep down the seam in the middle of the field. Get used to seeing that this season."

"Double reverse to DeSean ... Kolb didn't appear afraid to stick his nose in there."

"Screen pass to McCoy ... Nice block up front by Jean-Gilles."

"Maclin pulls in phenomenal grab deep down the middle from Kolb despite Allen being draped on him ... think his Giants TD from 09."

"Please remind Ricky Sapp that you can't touch the QB ... Bumps into Kafka for sack."

"Harbor nice catch deep down middle from Kafka despite coverage from Chaney, Lindley and Harris."

"Special CAT ... Team working on third down conversions."

"Juqua Parker runs up to Kevin Kolb and yells "Whoooo!" Needless to say Kolb would have been sacked."

"McGlynn vs. Antonio Dixon ... Round 1 ... Ding! Ding!"

-- Posted by Chris McPherson, 4:58 p.m., July 31