The Pittsburgh Steelers have issued tenders for their restricted free agents including WR Mike Wallace, CB Keenan Lewis, S Ryan Mundy, TE David Johnson, G Doug Legursky and G Ramon Foster. The big one in there is Wallace, who presumably received the first-round tender.

As a restricted free agent, the first-round tender would guarantee him about $2.7 million in 2012. However, as a restricted free agent, another team can potentially swoop in and sign him. If a team, like the Patriots, offered Wallace a contract and the Steelers declined to match it, they could give up a first-round pick and acquire him.

The Steelers have had some salary cap concerns, which is why some wonder whether a big contract the Steelers couldn't match would allow Wallace to leave Pittsburgh. The Steelers, for their part, are confident they'll be able to match any offers that may come their way.

The restricted free agency period will end on April 20 so the Steelers can't rest easy until then. For more on the Steelers, visit Behind The Steel Curtain and SB Nation Pittsburgh.