It shouldn't come as much of a surprise, but the Eagles have added a safety to their roster.

They claimed Trae Elston off waivers from the Buffalo Bills Wednesday, a day after the Bills released him.

The Eagles were in desperate need of some depth at safety after hamstring injuries have ripped apart their secondary. Rodney McLeod, Corey Graham and Jaylen Watkins all missed Wednesday's practice with hamstring injuries and are in danger of sitting this Sunday against the Giants. Cornerback Ronald Darby (ankle) will also still be out for a few more weeks.

The Eagles had just two safeties healthy on Wednesday: Malcolm Jenkins and Chris Maragos.

It won't be easy for Elston to come in and pick up the defense in time to play. Jenkins said if the team brought in a new player, that guy would probably be used more in a special teams role or in an emergency situation. The Eagles also have linebacker Kamu Grugier-Hill, who can play safety, and Jenkins thinks the Eagles' cornerbacks have the ability to slide back too.

Elston, 23, went undrafted out of Ole Miss last year. He has bounced around from the Saints to the Bucs to the Browns and then to the Bills. He spent all of training camp with the Bills and made their initial roster out of training camp before getting waived on Tuesday.

Since the Eagles had just 52 players as of Wednesday, they won't need to make a corresponding roster move. They got down to 52 last Friday when they placed rookie running back Donnel Pumphrey on IR.