Week 1 vs. New York Giants
The ageless one will continue to be relevant in Dallas, but Jason Witten's days as a top-tier tight end are behind him. Still, he is involved enough in a very good offense and will be useful during the season based on matchups.
The Giants defense was very good last season against Dallas, and were a solid unit overall, but the tight end position is where New York was least effective, ranking 20th in aFPA to tight ends. Witten did have 13 catches in the two meetings versus the Giants last season.
With the other Cowboys skill players garnering attention, Witten will be a factor and you should treat him as a low-end TE1. Start him this week and expect some quality production.