The Steelers signed wide receiver and 6th round draft pick Antonio Brown to three-year contract that included a $73,075 signing bonus on Tuesday. The contract totals out at at almost 1.29 million dollars and breaks down base wise as follows: 2010: $320,000, 2011: $405,000 and 2012: $490,000. Brown, a slot receiver who racked up 305 receptions in three seasons for Central Michigan, hopes his return ability can help him land a roster spot with the Steelers. The 5-foot-10, 180-pounder led the nation in punt returns as a junior in 2009 and returned five punts and kickoffs for touchdowns in his college career. The Steelers now how 4 draft picks under contract with more to follow this week.