The No. 3 receiver is very important in Pittsburgh's offense. Second-year player Emmanuel Sanders held that role at the end of last season. But multiple foot surgeries have forced Sanders to miss most of training camp.
Cotchery adds depth behind starters Hines Ward and Mike Wallace. Cotchery will compete for the No. 3 receiver role in training camp with Antonio Brown. Cotchery's numbers have declined in recent years. He had 71 receptions in 2008 but only 41 receptions last season.
Pittsburgh's signing of Cotchery -- in addition to its recent pursuit of Plaxico Burress -- might be a sign that the team isn't sure Sanders will be ready for the regular season. The Steelers will begin their 2011 campaign against the Baltimore Ravens on Sept. 11.