The Philadelphia Eagles worked out four players on Tuesday, a source confirmed.
Philadelphia got a look at DTs Dre Moore, Tank Tyler and Quinn Pitcock and TE John Nalbone.
Pitcock, who was selected in the third round of the 2007 NFL Draft by the Indianapolis Colts, surprisingly retired after just one season with the team.
Pitcock, 27, picked up his career earlier this year after signing with the Seattle Seahawks, who waived him on Sept. 4. Pitcock does have practice squad eligibility left.
Moore, who was selected in the fourth round of the 2008 NFL Draft by the Tampa Bay Buccaneers, was waived by Tampa Bay on Sept. 4. Moore also worked out recently for the St. Louis Rams. Moore does have practice squad eligibility left.
Tyler, who was selected in the third round of the 2007 NFL Draft by the Kansas City Chiefs, was waived by the Carolina Panthers on Sept. 4. Tyler does not have practice squad eligibility left.
Nalbone, who was selected in the fifth round of the 2009 NFL Draft by the Miami Dolphins, was waived by the Minnesota Vikings a few weeks ago. Nalbone is expected to sign with the Denver Broncos practice squad, a source said.
Philadelphia is down to three healthy defensive tackles on their 53-man roster. Starter Brodrick Bunkley (elbow) could miss a few more weeks.
-- Adam Caplan