Philadelphia Eagles sign QB Ian Book and RB Lew Nichols to the practice squad and release DB Tariq Castro-Fields.

With Jalen Hurts' status up-in-the-air, the Philadelphia Eagles have added support to the depth chart at the quarterback position. The Eagles are signing quarterback Ian Book to the practice squad after he visited the team on Wednesday,

Every player’s situation is unique when it comes to head injuries, but the Eagles did hold back two high-end starters — DeVonta Smith and Lane Johnson — for a game prior to the team’s bye week. Johnson seemed to be pushing to play, but the team took a cautious approach just a month into the regular season.