The Pittsburgh Steelers, normally one of the quietest teams in NFL free agency, suddenly are one of the busiest.The Steelers made a pair of surprise moves by re-signing safety Ryan Clark and bringing back wide receiver Antwaan Randle El on Tuesday — a day after signing two backups who excel on special teams, safety Will Allen from the Buccaneers and wide receiver Arnaz Battle from the 49ers.There's more, too: They're also bringing in offensive tackle Jonathan Scott, who played the last two...
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