The Eagles have placed tight end Zach Ertz on the Reserve/COVID-19 list, per a club announcement. Pending his vaccination status/test results, Ertz could still be eligible to play on Monday night against the Cowboys. But, for now, Ertz has been moved off of the roster. 
The Eagles now have an additional roster spot to fill if Ertz is not ready in time for Week 3. They presently have two healthy TEs in Dallas Goedert and Jack Stoll; it’s unlikely that they’d go into Monday night without a third.
Ertz has either tested positive for COVID-19 or has been in close contact with an infected person, but his status is unclear. Ertz, 31 in November, has been relegated to a secondary role behind Goedert. Through two games, he has just three catches for 40 yards. This comes after a down year of 36/335/1 in eleven games.
The veteran has just one year to go on his five-year, $42.5MM deal, putting him in line for free agency this spring.