Dallas Cowboys legend Larry Allen died suddenly while vacationing with his family in Mexico. He was 52.

Allen, who played 12 seasons with the Cowboys, passed away Sunday, as confirmed by the football team. The cause of death remains unknown.

Allen, drafted in the second round of the 1994 draft from Sonoma State University, played guard and tackle over his 14-season career. In 2013, he was inducted as a first-ballot Hall of Famer. He was also part of the Cowboys team that won Super Bowl XXX.

The Cowboys and team owner Jerry Jones honored Allen on X, praising him as “one of the most respected, accomplished offensive linemen to ever play in the NFL.” The Jones family and the Cowboys extended their deepest condolences to the Allen family.

The NFL also expressed their sorrow, stating, “The NFL family is deeply saddened by the passing of Hall of Famer, Super Bowl Champion and Cowboys legend, Larry Allen.”

Former Cowboys quarterback Troy Aikman, who played with Allen in the 1996 Super Bowl, called his passing “heartbreaking,” describing Allen as a “HOF offensive lineman” and a “gentle giant” who loved his family in a post on X.