The New Orleans Saints have placed linebacker Stanley Arnoux on injured reserve, Sheldon Mickles of The Advocate reports.

Arnoux suffered an Achilles' injury during Sunday's 34-19 win over the Seattle Seahawks.

A fourth-round pick (118th overall) out of Wake Forest in 2009, Arnoux (6-0, 232) had five tackles and a fumble recovery on special teams this season. Arnoux missed all of his rookie season after rupturing his left Achilles' tendon during a mini-camp practice.