Swaim dropped two catchable passes in Saturday's preseason opener against the Rams, finishing the game with one catch on three targets for 10 yards.
He's fighting for a spot on the depth chart behind Jason Witten, but the 2015 seventh round pick isn't doing himself any favors with performances like this. With Gavin Escobar (Achilles) on track to be ready for Week 1 and James Hanna signed to a new contract, Swaim has little margin for error when it comes to making the 53-man roster.