After having lost Mike Wallace, the Pittsburgh Steelers may be in danger of losing another key wide receiver.

Restricted free agent Emmanuel Sanders has signed an offer sheet with the New England Patriots, according to the Pittsburgh Post-Gazette.

Sanders received a $1.323 million tender offer from the Steelers, meaning Pittsburgh would receive a third-round pick (the round Sanders was selected in) if they elect not to match the Patriots' offer.

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Terry McCormick covers the Titans for TitanInsider.com