Cory Undlin (born June 29, 1971) is an

American football American football, referred to simply as football in the United States and Canada and also known as gridiron football, is a team sport played by two teams of eleven players on a rectangular American football field, field with goalposts at e ...

coach who is the defensive passing game coordinator for the

Houston Texans The Houston Texans are a professional American football team based in Houston. The Texans compete in the National Football League as a member of the American Football Conference (AFC) AFC South, South division. The team plays its home games at N ...

of the

National Football League The National Football League (NFL) is a Professional gridiron football, professional American football league in the United States. Composed of 32 teams, it is divided equally between the American Football Conference (AFC) and the National ...

(NFL). He previously served as the

defensive coordinator A defensive coordinator (DC) is a coach responsible for a gridiron football team's defense. Generally, the defensive coordinator, offensive coordinator and special teams coordinator represent the second level of a team's coaching structure, wit ...

for the

Detroit Lions The Detroit Lions are a professional American football team based in Detroit. The Lions compete in the National Football League (NFL) as a member of the National Football Conference (NFC) NFC North, North division. The team plays their home game ...

in 2020 and also served as an assistant coach for the

Philadelphia Eagles The Philadelphia Eagles are a professional American football team based in Philadelphia. The Eagles compete in the National Football League (NFL) as a member of the National Football Conference (NFC) NFC East, East division. The team plays its ...

Denver Broncos The Denver Broncos are a professional American football team based in Denver. The Broncos compete in the National Football League (NFL) as a member of the American Football Conference (AFC) AFC West, West division. The team is headquartered in E ...

Jacksonville Jaguars The Jacksonville Jaguars are a professional American football team based in Jacksonville, Florida. The Jaguars compete in the National Football League (NFL) as a member of the American Football Conference (AFC) AFC South, South division. The team ...

Cleveland Browns The Cleveland Browns are a professional American football team based in Cleveland. The Browns compete in the National Football League (NFL) as a member of the American Football Conference (AFC) AFC North, North division. The team is named after ...

New England Patriots The New England Patriots are a professional American football team based in the Greater Boston area. The Patriots compete in the National Football League (NFL) as a member of the American Football Conference (AFC) AFC East, East division. The Pa ...

and

San Francisco 49ers The San Francisco 49ers (also written as the San Francisco Forty-Niners and nicknamed the Niners) are a professional American football team based in the San Francisco Bay Area. The 49ers compete in the National Football League (NFL) as a member ...

Playing career

Undlin attended

California Lutheran University California Lutheran University (CLU, Cal Lutheran, or Cal Lu) is a private university in Thousand Oaks, California, United States. It was founded in 1959 and is affiliated with the Evangelical Lutheran Church in America, but is nonsectarian. It o ...

, where he played football as a

safety Safety is the state of being protected from harm or other danger. Safety can also refer to the control of recognized hazards in order to achieve an acceptable level of risk. Meanings The word 'safety' entered the English language in the 1 ...

from 1990 to 1994. He had the distinction of being named second-team All-Southern California Intercollegiate Athletic Conference honors in 1993. At Cal Lutheran, he was a teammate and roommate of Ben McEnroe.

Coaching career

College

Undlin began his coaching career at his alma mater California Lutheran as a

linebacker Linebacker (LB) is a playing position in gridiron football. Linebackers are members of the defensive team, and typically line up three to five yards behind the line of scrimmage and so back up the defensive linemen. They play closer to the line ...

s coach from 1998 to 1999. He was promoted to

in 2000, a position he held through 2001, when he moved to Fresno State University. He spent two seasons in 2002 and 2003 as a graduate assistant at Fresno State under head coach

Pat Hill Lawrence Patrick Hill (born December 17, 1951) is an American football coach, former player, and broadcaster. He served as the head football coach at Fresno State from 1997 until his dismissal following the 2011 season. In 15 seasons as head ...

, a former assistant coach with the

under Bill Belichick.

New England Patriots

2004 2004 was designated as an International Year of Rice by the United Nations, and the International Year to Commemorate the Struggle Against Slavery and Its Abolition (by UNESCO). Events January * January 3 – Flash Airlines Flight 60 ...

, Undlin joined Belichick as a defensive coaching assistant with the

. He was part of the Patriots staff when they won

Super Bowl XXXIX Super Bowl XXXIX was an American football game played between the American Football Conference (AFC) champion New England Patriots and the National Football Conference (NFC) champion Philadelphia Eagles to decide the National Football League (NF ...

Cleveland Browns

In 2005, Undlin was hired by the

as a defensive assistant under head coach Romeo Crennel. In

2007 2007 was designated as the International Heliophysical Year and the International Polar Year. Events January * January 1 **Bulgaria and Romania 2007 enlargement of the European Union, join the European Union, while Slovenia joins the Eur ...

, Undlin was promoted to secondary coach and assistant special teams coach. In

2008 2008 was designated as: *International Year of Languages *International Year of Planet Earth *International Year of the Potato *International Year of Sanitation The Great Recession, a worldwide recession which began in 2007, continued throu ...

, Undlin was promoted to defensive backs coach.

Jacksonville Jaguars

2009 2009 was designated as the International Year of Astronomy by the United Nations to coincide with the 400th anniversary of Galileo Galilei's first known astronomical studies with a telescope and the publication of Astronomia Nova by Joha ...

, Undlin moved to the

as a defensive assistant following Crennel's firing in Cleveland. He was promoted to defensive backs coach in 2010, but was fired along with the rest of the staff after the 2011 season.

Denver Broncos

2012 2012 was designated as: *International Year of Cooperatives *International Year of Sustainable Energy for All Events January *January 4 – The Cicada 3301 internet hunt begins. * January 12 – Peaceful protests begin in the R ...

, he was hired as a defensive quality control coach for the

, and he was promoted to defensive backs coach in 2013.

Philadelphia Eagles

In January 2015, Undlin was hired by the

as their defensive backs coach. He was retained as the defensive backs coach for the Eagles on January 20, 2016. On February 4, 2018, Undlin was part of the Philadelphia Eagles coaching staff that defeated the New England Patriots, 41–33, in

Super Bowl LII Super Bowl LII was an American football game played to determine the champion of the National Football League (NFL) for the 2017 season. As a rematch of Super Bowl XXXIX from 13 years earlier, the game was between the National Football Conferen ...

Detroit Lions

On January 13, 2020, Undlin was hired by the

as their defensive coordinator under head coach Matt Patricia. He missed the team's week 16 game against the

Tampa Bay Buccaneers The Tampa Bay Buccaneers (colloquially known as the Bucs) are a professional American football team based in Tampa, Florida. The Buccaneers compete in the National Football League (NFL) as a member of the National Football Conference (NFC) NFC S ...

due to

COVID-19 Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 can vary but often include fever ...

protocols. He was fired following the season.

San Francisco 49ers

On February 11, 2021, Undlin was hired by the

as their pass game specialist and secondary coach under head coach Kyle Shanahan.

Houston Texans

On February 14, 2023, Undlin was hired by the

as their defensive passing game coordinator under head coach DeMeco Ryans.

References

{{DEFAULTSORT:Undlin, Cory 1971 births Living people American football safeties Cal Lutheran Kingsmen football coaches Cal Lutheran Kingsmen football players Cleveland Browns coaches Denver Broncos coaches Detroit Lions coaches Fresno State Bulldogs football coaches Houston Texans coaches Jacksonville Jaguars coaches NFL defensive coordinators New England Patriots coaches Philadelphia Eagles coaches Players of American football from St. Cloud, Minnesota San Francisco 49ers coaches Coaches of American football from Minnesota