Seferian-Jenkins was arrested for DUI for a third time on March 9, 2020.

On February 18, 2019, the Jaguars declined the option on Seferian-Jenkins’ contract, making him a free agent at the start of the new league year.

On April 10, 2019, Seferian-Jenkins signed a one-year contract with the New England Patriots. He was released on June 4, 2019, citing personal issues.

On March 15, 2018, Seferian-Jenkins signed a two-year, $10 million contract with the Jacksonville Jaguars. He was placed on injured reserve on October 9, 2018 after aggravating a core muscle injury.

On March 15, 2017, Seferian-Jenkins was suspended the first two weeks of the 2017 season for violating the NFL Policy and Program for Substances of Abuse.

In May 2017, Seferian-Jenkins opened up regarding his struggles with alcohol, and indicated that he had sought help by attending rehab on an outpatient basis.

Seferian-Jenkins would have a tumultuous 2016 season. He played in the season opener against the Atlanta Falcons at the Georgia Dome. He had one reception for 30 yards and a touchdown, which would be his only one of the 2016 season. He would play one more game with the Buccaneers on September 18, which was against the Arizona Cardinals at the University of Phoenix Stadium. He had two receptions for 14 yards in the 40-7 loss. On September 23, 2016, Seferian-Jenkins was arrested on a DUI charge and was released by the Buccaneers later that day.

On September 26, 2016, Seferian-Jenkins was claimed off waivers by the New York Jets.

In addition, Seferian-Jenkins cited for DUI on the morning of Friday, September 23, 2016. He was released by the Tampa Bay Buccaneers on the same day of the incident.

In the 2015 season, with rookie quarterback and first overall pick Jameis Winston, Seferian-Jenkins looked to expand on his rookie season. He had a career day in a season opening loss to the Tennessee Titans. He had five receptions for 110 yards and two touchdowns, which were a five-yard reception in the second quarter and a 41-yard reception in the fourth quarter. Both of Seferian-Jenkins’s touchdowns were the first touchdown passes of Jameis Winston’s NFL career. Seferian-Jenkins’s remainder of his 2015 season would not have the success he had in the season opener. He only scored two more touchdowns on the season, which were was a nine-yard reception from Winston against the St. Louis Rams and a 43-yard reception from Winston against the Chicago Bears. He played in seven games with 338 receiving yards and four touchdowns.

Seferian-Jenkins was a projected a second-round selection by CBS Sports in the 2014 NFL Draft.

Seferian-Jenkins was drafted by the Tampa Bay Buccaneers in the second round with the 38th overall pick in the 2014 NFL Draft.

As a true freshman in the 2011 season, Seferian-Jenkins started 10 of 13 games and had 41 receptions for 538 yards and six touchdowns. In addition to football, he played basketball as a freshman. In his sophomore season, he recorded 69 receptions for 852 yards and seven touchdowns. He finished third in the Mackey Award voting. Upon completing his sophomore season, he had already set Washington records with 110 receptions, 1,390 receiving yards, and 13 touchdowns for the tight end position. On August 12, 2013, Seferian-Jenkins suffered a broken pinkie during practice. Head coach Steve Sarkisian announced the next day that Seferian-Jenkins will have to undergo surgery to repair the broken pinkie. Following Washington’s 31-16 victory in the 2013 Fight Hunger Bowl, he announced he would leave school early and enter the 2014 NFL Draft.

During Week 6 against the New England Patriots, Seferian-Jenkins fumbled inches from the endzone, in which the ball landed out of bounds in the endzone, resulting in a touchback. The call was controversial, but ultimately the error loomed large, as the Jets lost the game 17–24.

On March 9, 2013, Seferian-Jenkins was cited for driving under the influence in the University District of Seattle. In July 2013, he pleaded guilty to DUI and served a day in jail. The football team suspended Seferian-Jenkins for 1 game, the Huskies’ 2013 season opener against Boise State.

Seferian-Jenkins attended Gig Harbor High School in Gig Harbor, Washington. He played football for the Gig Harbor High School Tides. He had 126 receptions during his career and played in the 2011 U.S. Army All-American Bowl.

Austin Edward Seferian-Jenkins (born September 29, 1992) is an American football tight end who is a free agent. He was drafted by the Tampa Bay Buccaneers in the second round of the 2014 NFL Draft. He played college football at Washington. He has also played for the New York Jets and Jacksonville Jaguars.