On June 5, 2007, the Chiefs agreed to trade Green to the Miami Dolphins for a conditional fifth-round pick in the 2008 NFL Draft, pending a physical from Green which was subsequently passed. Green was introduced at a news conference in Miami on June 6. The draft pick would have become a fourth-round pick if Green played more than 70 percent of Miami's offensive plays. On August 20 the Dolphins named Green the starter with Cleo Lemon named as his backup, despite the fact that neither of them had thrown a touchdown pass to that point in pre-season play. Second-round pick John Beck was named third string.