Brown was active, but did not play in the Eagles' 24-22 win over the Commanders on Sunday.
Brown signed a one-year contract with Philadelphia in March after notching 49 catches for 587 yards and five scores over 16 regular-season contests with Kansas City in 2025. It's unclear why the wide receiver didn't play in Week 1, and he'll look to make his regular-season debut with the Eagles in Week 2 versus Tennessee.