R Mason Thomas (born August 25, 2004) is an American professional football defensive end for the Kansas City Chiefs of the National Football League (NFL). He played college football for the Oklahoma Sooners before being selected by the Chiefs in the second round of the 2026 NFL draft.
Early life Thomas was born in Pompano Beach, Florida. His father, Harvey, played defensive end and tight end for the Florida Gators from 1988 to 1992. His mother's family had a tradition of names beginning with the letter R, but she preferred the name Mason, so he was named R Mason (the R does not stand for anything). Thomas attended Cardinal Gibbons High School in Fort Lauderdale, Florida. Over his junior and senior seasons he combined for 109 tackles and 19 sacks. He originally committed to play college football at Iowa State University before changing to the University of Oklahoma.
College career As a true freshman at Oklahoma in 2022, Thomas played in 10 games and had seven tackles and 0.5 sacks. As a sophomore he played in nine games and finished with nine tackles and one sack. Thomas returned to Oklahoma his junior season in 2024 and earned more playing time. Against Tulane he had three sacks, a forced fumble and fumble recovery.
Professional career
Thomas was selected by the Kansas City Chiefs in the second round, with the 40th overall pick in the 2026 NFL draft.
References
External links Kansas City Chiefs bio Oklahoma Sooners bio