Summary:
- The article discusses Denver Broncos tight end Lucas Krull's attendance at "Tight End U," a prestigious offseason training program for NFL tight ends.
- Krull, a former college basketball player who transitioned to football, is looking to make an impact with the Broncos after being signed as an undrafted free agent.
- The article highlights Krull's participation in the Tight End U program as an opportunity for him to learn from and network with some of the top tight ends in the NFL, which could help him improve his skills and increase his chances of making the Broncos' roster.