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The Saints filled their vacancies on the practice squad by signing defensive back Alden Darby, fullback Toben Opurum and tackle Bryan Witzmann, according to sources.

New Orleans also worked out defensive backs Kenny Ladler and Brandian Ross, guard Michael Liedtke and tackle Jake Rodgers, according to a source.

Opurum was promoted to the 53-man roster in advance of Sunday’s game against the Arizona Cardinals. He was waived earlier this week.

The Saints released tight end Blake Annen, wide receiver R.J. Harris and offensive lineman Sean Hickey from the practice squad on Tuesday.