Cook (groin) isn't participating in Thursday's practice, Amie Just of The New Orleans Times-Picayune reports.

Since he's been sidelined for two practices in a row, Cook will likely need to practice on at least a limited basis Friday just to take a questionable designation into Sunday's game against the Lions. If Cook is forced to sit out the Week 4 matchup, Adam Trautman will take on an enhanced role as the Saints' top pass-catching tight end.

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