In a corresponding roster move, quarterback/wide receiver Devin Garnder was placed on the waived/injured list.
Hartley, 29, appeared in two games for the Cleveland Browns last season, making all three of his field-goal attempts and both of his extra-point attempts. Previously, Hartley spent the first six seasons of his NFL career with the New Orleans Saints, who signed him as a free agent in 2008.
Over 59 career games, Hartley has converted 85 of his 104 field-goal attempts (81.7%) with a long of 55 yards. The majority of those kicks came inside the Saints’s Mercedez-Benz Superdome; the Steelers play outdoors at Heinz Field.
The Steelers claimed Gardner off waivers in May after he went undrafted in May’s NFL draft and was later signed and released by the New England Patriots.
- Mike Fiammetta