DALLAS (AP) — Luke Laufenberg, the son of former Dallas Cowboys quarterback Babe Laufenberg and a tight end at UTEP, has died after a nearly two-year battle with cancer. He was 21.

The elder Laufenberg posted on Twitter on Thursday, writing “we lost a son, a brother, a friend, and a warrior. Have never seen a person battle like Luke Laufenberg, but he lost his fight with cancer.”

A former walk-on at Texas A&M, Luke Laufenberg played at Mesa Community College before getting diagnosed with Burkitt lymphoma after his only season at the junior college in 2017. He was declared cancer-free in May 2018 before experiencing further complications this past spring. Luke Laufenberg never played for the Miners.