Dolphins QB Ryan Tannehill to undergo ACL surgery, miss season

Dolphins C Mike Pouncey will likely play in Week 2 or 3 of the preseason

He fills the roster spot vacated by Ryan Tannehill, who was formally placed on injured reserve after deciding to undergo surgery to fix his ACL injury. With Tannehill done for the year, Miami will turn to Jay Cutler as their starter.

Torn ACLs have become the bane of the Miami Dolphins 2017 preseason. Tannehill will be placed on injured reserve, the person said.

While Tannehill could have made a decision to rest the knee for six to eight weeks and try to come back from the injury again, surgery was the most viable and likely option. "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, who missed the final four games of last season with two sprained ligaments in his knee, reinjured it a week into training camp on August 3.

However, ESPN's Adam Schefter reported the Dolphins' "fear" was Tannehill would require season-ending surgery.

Cutler will now fill in for Tannehill while Matt Moore remains to the backup on the depth chart for the Dolphins. As with Cutler, Tannehill had enjoyed his best season under the tutelage of Gase, who was hired by Miami previous year.

Tannehill, 29, threw for 2,995 yards, 19 touchdowns and 12 interceptions last season in leading the Dolphins to a 10-6 record and a playoff berth.

Tannehill will have surgery for a torn anterior cruciate ligament, a person familiar with the decision said Friday.