Steelers Thursday OTAs recap: Practices will resume June 3-5

The Steelers concluded the first wave of OTAs sessions Thursday, and are scheduled to resume June 3-5 in Pittsburgh. Here's a rundown of what happened in the last practice of the week.

A quieter but more athletic secondary - Mike Mitchell will replace Ryan Clark as the Steelers' starting free safety, and it's already noticeable. The always chatty Clark left an audible void in the Steelers' practices.

Shaq Richardson signs rookie contract - He's the last of the five rookies who won't affect the current salary cap to sign. The top four picks, Ryan Shazier, Stephon Tuitt, Dri Archer and Martavis Bryant are expected to sign on or shortly after June 2.

Saying goodbye to Embernasty...for now- The Steelers waived second-year guard Nik Embernate Thursday, reports indicate he's not fully healthy from the knee injury that cost him the 2013 season. Don't forget about him, though.

Steelers Film Room: Le'Veon Bell - Breaking down the decision-making of Steelers running back Le'Veon Bell from Week 3 to Week 16. The rookie showed a good level of improvement and an outstanding 2014 season is ahead.

Archer attending NFLPA Rookie Premiere - Needless to say, we know how we'll cover this event next year, and it'll be a little different than what we did this year.

Troy Polamalu ranks 61st on NFL Network's Top 100 list - His position is the matter of some controversy, but since that's the purpose of this list, it fits well with the general goal.

Mike Mitchell won't dive over the center - Dale Grdnic's on-site feature highlights Mitchell, and how he intends to learn from, not emulate, Polamalu.

Antonio Brown can't get off punts - Every year the Steelers tell their All Pro receiver he won't return punts. Every year, he's returning punts. You won't need two guesses to answer who was returning punts during OTAs.