All three are restricted free agents, which means they have until April 18 to sign the offer. In the meantime, they can negotiate with another team but the Cardinals have a right to match any offer or receive a draft pick as compensation.
Green and Smith, starters last season, were tendered first-round offers of $2.07 million. The Cardinals would receive a first-round pick if they sign with another team and that offer is not matched by Arizona. Brown's tender offer of $927,000 would reward Arizona with a fourth-round selection, the same round in which he was drafted.
The Cardinals declined to tender offers to four restricted free agents: linebacker Darryl Blackstock, tight end Tim Euhus and receivers Jerheme Urban and Ahmad Merritt. Blackstock was a third-round draft pick in 2005.