The 29-year-old Tannehill will undergo reconstructive surgery on a partially torn anterior cruciate ligament in hisleft knee.
While the Dolphins and Tannehill reportedly came to a decision regarding his knee injury Friday night, Miami's front office and coaching staff have made it clear that they still intend to compete in 2017.
Tannehill was able to help lead the Dolphins to the playoffs last season but has proven to be injury prone over the last few years.
Tannehill suffered the injury on August 3 when he fell to the ground while scrambling toward the sideline in practice. "The fact that it's him and he knows his body and how he feels-It's unfortunate for him because he worked so hard to be available for us".
Tannehill missed the final four games of last season with two sprained ligaments in his knee, and he reinjured it a week into training camp.
Cutler, who parted with the Chicago Bears after eight seasons, postponed retirement and his TV job, signing a $10 million, one-year contract.
Tannehill will have a tough and possible long rehab ahead of him. As with Cutler, Tannehill had enjoyed his best season under the tutelage of Gase, who was hired by Miami past year.