It’s the rib/back injury he suffered in the first quarter of the Cowboys game, a ball that Carson Wentz sailed on him.

Bummer for Ertz, who was officially ruled out today by the Eagles, along with Nelson Agholor.

Here’s the full injury report:

No Ertz, no DeSean Jackson, no Alshon Jeffery, no Nelson Agholor.

The Eagles will play for the NFC East title on Sunday with Dallas Goedert, Greg Ward, J.J. Arcega-Whiteside, and Robert Davis leading the line. Jordan Howard will have a limited role behind Miles Sanders and Boston Scott.