Kellen Diesch Bio
Kellen Diesch is an American professional football offensive tackle. Born on August 23, 1997, in Dallas, Texas, he currently plays in the United Football League after entering the professional ranks as an undrafted free agent in 2022. Standing 6 feet 7 inches tall and listed around 300 pounds, he has built a journeyman career across several National Football League practice squads and UFL rosters. He is widely recognized for his time at Arizona State, where he earned second-team All-Pac-12 honors in consecutive seasons.
Across his professional journey, Diesch has been part of nine different organizations, working through development opportunities at the NFL level before establishing himself as a starter in spring football. His career reflects persistence and steady development as a tackle prospect with the size and athleticism to handle multiple positions along the offensive front.
Early Life and Background
Kellen Diesch grew up in Trophy Club, Texas, a suburb in the Dallas-Fort Worth metroplex known for its strong high school athletics programs. He attended Byron Nelson High School, where he developed into a Division I recruit at offensive tackle. His physical growth during his teenage years helped him project as a college-level lineman, and his background in the football-rich state of Texas gave him early exposure to high-level coaching and competition.
Coming out of high school, Diesch was regarded as a developmental prospect with the frame and footwork needed to play tackle at the next level. He signed with Texas A&M, choosing the SEC program over other offers, and began laying the foundation for his college career.
Path to Professional Football
Diesch began his college career at Texas A&M, where he redshirted his true freshman season before spending the next three years primarily as a reserve. Although he appeared in rotation along the offensive line, he did not lock down a starting role during his time in College Station. After his redshirt junior year, he announced his decision to transfer and pursue a graduate transfer opportunity.
He landed at Arizona State as a graduate transfer and immediately became a starter for the Sun Devils. He then elected to use the extra year of eligibility granted to athletes affected by the coronavirus pandemic, returning for a second season. In 2020 and 2021, Diesch was named second-team All-Pac-12, capping his college career as one of the conference’s most experienced tackles.
Kellen Diesch Career
Early Career (2022)
Following the 2022 NFL Draft, Kellen Diesch signed with the Miami Dolphins as an undrafted free agent on April 30, 2022. His initial stay with the Dolphins was brief, as he was waived on August 30, 2022, during final roster cuts. Despite the short tenure, the opportunity validated his draft-eligible profile and gave him a foothold inside an NFL organization.
Two days later, on September 1, 2022, Diesch was signed to the Chicago Bears practice squad, beginning a stretch of practice-squad experience that would shape his development. He signed a reserve/future contract with the Bears on January 9, 2023, securing a path to offseason workouts and the following training camp, though he was ultimately waived on August 29, 2023.
NFL Journeyman Years (2023–2024)
On August 31, 2023, Diesch signed with the Pittsburgh Steelers practice squad, where he continued his professional apprenticeship on the offensive line. He signed a reserve/futures contract with the Steelers on January 17, 2024, but was waived on May 13, 2024, as part of roster reshuffling.
The 2024 season saw Diesch move through several NFL organizations in rapid succession. He was claimed off waivers by the Cleveland Browns on May 14, 2024, but was waived two days later with a failed physical designation. He signed with the New England Patriots on August 2, 2024, before being waived on August 27. Later that season, on December 10, 2024, he joined the Tennessee Titans practice squad, only to be released on December 26.
UFL Transition (2025)
On January 30, 2025, Diesch signed with the Arlington Renegades of the United Football League, beginning his transition to spring professional football. The UFL move offered him a chance to compete for a starting role rather than hold a practice-squad spot. He appeared in regular-season action for the Renegades before being traded to the Memphis Showboats on April 21, 2025, in exchange for offensive tackle J. D. DiRenzo.
With the Memphis Showboats, Diesch took on a more prominent role as a starting offensive tackle. The 2025 UFL campaign allowed him to showcase the development he had accumulated across multiple NFL stops, and his performance positioned him for continued opportunity at the professional level.
Driving Style and Strengths
Diesch is a tall, long-armed tackle whose game centers on size, leverage, and positional versatility. His experience working under multiple offensive line coaches has helped him develop a flexible skill set, allowing him to play either tackle spot or slide inside to guard in certain packages. He is regarded as a dependable pass protector with the athleticism to mirror edge rushers.
Notable Events and Milestones
Among his signature accomplishments, Diesch earned second-team All-Pac-12 recognition in both 2020 and 2021, becoming one of only a handful of Arizona State offensive linemen to claim the honor in consecutive years. His professional milestone includes appearing in UFL regular-season games for both the Arlington Renegades and Memphis Showboats in 2025, marking his most sustained stretch of in-game action as a professional.
Kellen Diesch Career Highlights
Kellen Diesch’s career highlights span college accolades and a steady accumulation of professional opportunities across the NFL and UFL. While he has not yet appeared in a regular-season NFL game, his repeated signings and practice-squad tenures reflect sustained interest from league evaluators. His transition to the UFL in 2025 marked a turning point, allowing him to log meaningful snaps as a starting offensive tackle.
UFL Highlights
Diesch joined the Arlington Renegades in January 2025 before being traded midseason to the Memphis Showboats in April 2025. With Memphis, he stepped into a regular starting role and helped anchor the offensive line for the remainder of the spring season, providing the kind of consistent play that had eluded him during his NFL practice-squad years.
Other Performances
At the college level, Diesch finished his Arizona State career with consecutive second-team All-Pac-12 honors in 2020 and 2021, establishing himself as one of the conference’s most reliable tackles. His combination of size, length, and experience has made him a dependable developmental prospect throughout his professional career.
Kellen Diesch Family
Family Background and Personal Life
Public information about Kellen Diesch’s family background remains limited. He was raised in Trophy Club, Texas, and his path through Byron Nelson High School, Texas A&M, and Arizona State reflects a steady support system that helped him pursue a career in professional football. Further details about his parents and siblings have not been publicly verified.
Personal Life
Kellen Diesch has kept his personal life largely private. There is no publicly confirmed information regarding a spouse, partner, or children. His professional focus and frequent team transitions have kept much of his life outside of football out of the public eye.
2025 Season Performance
The 2025 UFL season represented Kellen Diesch’s most productive professional campaign to date. He began the year with the Arlington Renegades after signing on January 30, 2025, and was traded to the Memphis Showboats on April 21, 2025. With Memphis, he settled into a starting role at offensive tackle and provided veteran stability along the offensive front.
Throughout the spring season, Diesch showed the development that his years of NFL practice-squad experience had produced, displaying improved footwork and consistency in pass protection. His midseason trade underscored the value teams placed on his services, and his steady play helped anchor the Showboats’ offensive line for the stretch run.
Heading into the remainder of the 2025 campaign and looking ahead, Diesch’s outlook appeared encouraging. His combination of size, experience, and proven availability positioned him as a potential candidate for NFL opportunities or a featured role in future UFL seasons, depending on how spring league rosters continued to evolve.