Davie, FL (SportsNetwork.com) - The Miami Dolphins signed quarterback Ryan Tannehill to a contract extension through the 2020 season on Monday.

Last season, Tannehill started every game and completed 66.4 percent (392- of-590) of his passes for 4,045 yards with 27 touchdowns and 12 interceptions. He had a passer rating of 92.8, adding 56 rushes for 311 yards and one touchdown. His completions, attempts, completion percentage, passing yards, passing touchdowns, passer rating and rushing yards were all career highs.

"We are thrilled that we were able to sign Ryan to an extension," said Dolphins Executive Vice President of Football Operations Mike Tannenbaum. "He is an ascending talent, a team leader and checks all of the boxes you are looking for at the position."

The eighth overall selection in the 2012 NFL draft, Tannehill started all 48 games in his three-year career and has completed 1,029-of-1,662 passes for 11,252 yards, 63 touchdowns and 42 interceptions, for an 84.0 passer rating.

"Signing Ryan to this deal is important to our franchise," added Dolphins general manager Dennis Hickey. "He is a proven quarterback in this league that combines a talented skill set with work ethic, passion, toughness, and a team first mentality. We are committed and believe in Ryan as our quarterback for the long-term and we are excited to be able to sign him to this extension."

Tannehill's 2014 season went was one of the best the Dolphins have ever seen. His 92.8 passer rating was the fifth-highest single-season figure in Dolphins history, his 392 completions set a franchise single-season record, his 66.4 completion percentage was the second-highest single-season completion percentage in team history, his 4,045 passing yards were the seventh-highest single-season total by a Dolphins player and most since 1994, and his 27 touchdown passes were the sixth-most in a season in Dolphins history and also the most since 1994.