Question: Alex Guerrero (born February 16, 1984) is former American football offensive and defensive lineman, his clients include Arizona Cardinals cornerback Patrick Peterson and which American football safety for the Arizona Cardinals of the National Football League?

Context articles: Eric Mensik
Tyrann Mathieu
Ian Allen (gridiron football)
Cecil Gray (American football)
John Nix
Patrick Peterson
John Fina
Tommy Kelly
Quentin Harris (American football)
Alex Guerrero (American football)

Eric Mensik (born December 18, 1987) is a former American football offensive tackle.
 He was signed by the Arizona Cardinals as an undrafted free agent in 2011.
 He played college football at Oklahoma from 2007 to 2010, beginning as a tight end and later moving to the offensive line.
 He was selected as a first-team All-Big 12 player after the 2010 college football season.
 Mensik was signed by the Arizona Cardinals as an undrafted free agent following the end of the NFL lockout in 2011.
 He was waived on August 29, 2011.
Tyrann Devine Mathieu ( ; born May 13, 1992) is an American football safety for the Arizona Cardinals of the National Football League (NFL).
 He played college football for Louisiana State University (LSU).
 In college, he developed a reputation for causing turnovers, setting a Southeastern Conference (SEC) record with 11 career forced fumbles and earning the nickname, "Honey Badger".
 In his sophomore season, he was recognized as a consensus All-American, won the Chuck Bednarik Award as the best defensive player in college football, and was a finalist for the Heisman Trophy.
 Mathieu was dismissed from the LSU football program after that season due to a violation of team rules.
Ian Ramon Allen (born July 22, 1978) is a former American football offensive lineman.
 He played in the National Football League (NFL) for the New York Giants, the Philadelphia Eagles, the Arizona Cardinals, the Atlanta Falcons, and the Kansas City Chiefs.
 He also played in NFL Europe with the Scottish Claymores and in the Canadian Football League (CFL) with the Montreal Alouettes.
 He attended college at Purdue University, where he earned a communications degree and played for the Purdue Boilermakers.
Cecil Tarik Gray (born February 16, 1968 in Harlem, New York) is a former American football offensive tackle and defensive end who played for six seasons in the National Football League.
 He played for the Philadelphia Eagles from 1990 to 1991, the Green Bay Packers in 1992, the New Orleans Saints in 1993, the Indianapolis Colts from 1993 to 1994, and the Arizona Cardinals in 1995.
 He was drafted by the Eagles in the ninth round of the 1990 NFL Draft.
 He played college football at North Carolina.
John G. Nix (born November 24, 1976) is a former American football defensive lineman who played in the National Football League for the Dallas Cowboys, Cleveland Browns and the Arizona Cardinals.
 In his professional career, he also played for the Amsterdam Admirals of NFL Europe, the Montreal Alouettes of the Canadian Football League (CFL), and in the Arena Football League.
 He played college football at Southern Mississippi.
Patrick De'mon Peterson (born July 11, 1990) is an American football cornerback for the Arizona Cardinals of the National Football League (NFL).
 He played college football at Louisiana State University (LSU), where he won the Chuck Bednarik Award as the best defensive player in the country, the Jim Thorpe Award as the best defensive back, and was unanimously recognized as an All-American.
 He was selected fifth overall by the Cardinals in the first round of the 2011 NFL Draft.
 Peterson has been invited to the Pro Bowl in each of his first six seasons in the NFL, and is considered to be one of the best cornerbacks in the league.
John Joseph Fina (born March 11, 1969) is a former American football offensive lineman, who spent eleven years in the National Football League, ten of those with the Buffalo Bills, and a one-year stint with the Arizona Cardinals.
 Fina attended Salpointe Catholic High School where he was first team All-State his senior year, and is one of only two players in school history to have their jersey retired.
 Fina attended the University of Arizona where he was a brother of Sigma Phi Epsilon.
 He was drafted by the Buffalo Bills in the 1st round, 27th overall, in the 1992 NFL Draft.
 He has played in two Super Bowls, XXVII and XXVIII, however the Bills lost both of them to the Dallas Cowboys.
 He now resides in Tucson, Arizona.
Tommy Terrell Kelly (born December 27, 1980) is a former American football defensive lineman and is a coaching intern for the Arizona Cardinals of the National Football League.
 He played college football at Mississippi State and was signed by the Oakland Raiders as an undrafted free agent in 2004.
 He played with Raiders and then single seasons with the New England Patriots and Cardinals before retiring prior to the 2015 season.
Quentin Hugh Harris (born January 26, 1977) is a former American football safety who last played for the Denver Broncos of the National Football League.
 Harris also played for the Arizona Cardinals.
 He is currently a scout for the Arizona Cardinals.
Alex Guerrero (born February 16, 1984) is former American football offensive and defensive lineman.
 He was signed by the Kansas City Chiefs as an undrafted free agent in 2006.
 He played college football at Boise State.
 He played the 2009 season with the Boise Burn of af2, and in the 2010 season with the Arizona Rattlers of the Arena Football League.
 Guerrero now runs his own brand management company for athletes.
 His clients include Arizona Cardinals cornerback Patrick Peterson and Tyrann Mathieu.