The Steelers announced Tuesday they have come to terms with third round draft pick, LB Sean Spence.

His signing, on the first day of the second OTA session, leaves only their first round pick, OG David DeCastro, unsigned. With Cincinnati having signed OG Kevin Zeitler, the 27th overall pick of the draft, on May 25, the table appears to be set for DeCastro's signing.

Spence, though, is all set. The speedy if undersized linebacker looks to handle back-up duties behind incumbent Lawrence Timmons, and is someone who could be seen handling sub-package work this year, primarily in coverage.

The 5-foot-11 Spence, a Miami product, could give the Steelers an extra advantage in nickel or dime packages this year. They struggled in coverage from their linebackers last year, and depending on how well Spence, a Miami captain last season, can pick up the defense, he could see himself on the field.

DeCastro, unable to attend OTAs due to NFL rules prohibiting rookies from beginning work with their teams until their college has let out for the summer, looks to start at right guard as part of the Steelers' 2012 offensive line overhaul. A deal is expected to get done shortly after his arrival, if not sooner.