The Steelers didn't tender an offer to Sims as a restricted free agent Wednesday, Alan Saunders of PittsburghSportsNow.com reports.
Sims played 284 offensive snaps last season, seeing his role grow following the Chase Claypool trade, but he finished the year with just 14 catches for 104 scoreless yards. He'll look to compete for a job on some other team's roster this summer.