What happened: Tagovailoa left Thursday's practice and did not return. [Falcons injury update](https://www.atlantafalcons.com/news/falcons-injury-report-qb-tua-tagovailoa-added-to-thursday-report). Atlanta had named him its Week 1 starter on Sept. 7.

Why it matters: Atlanta must turn to a reserve quarterback for Sunday's season opener in Pittsburgh.

What to watch: Tagovailoa's participation in next week's practices will be the next availability checkpoint.