Quarterback Nick Foles will be back to save the day for the Philadelphia Eagles, at least not this week.

Foles had a check-up on his broken collarbone and had hoped X-rays would reveal enough healing to be cleared to practice and possibly play in the Eagles’ Week 16 game against the Washington Redskins. However, he will have to wait another week for doctors to look at the cracked bone again and is ruled out for this week.

Coach Chip Kelly said Monday that Foles is “not healed. He’s out this week.”

The Eagles are 3-3 in games started by Mark Sanchez, including a loss Sunday night that shifted the power in the NFC East to the Dallas Cowboys. The Cowboys (10-4) took over first place host the Colts this week and end the regular season at Washington.

Sanchez, who threw two interceptions in Sunday’s loss to Dallas, is the first Philadelphia quarterback with four multiple-interception games in a season since Randall Cunningham in 1988, and Sanchez has only played in seven games (he subbed for Foles vs. Houston).

“I’m the first guy to say that I’m just upset with myself,” Sanchez said. “You can’t turn the ball over.”

Kelly also said Monday the Eagles are staying with cornerback Bradley Fletcher, who was overwhelmed in man-to-man coverage against Dez Bryant. The Cowboys’ receiver hauled in three touchdown passes Sunday, when Dallas built a 21-0 lead and posted a 38-27 victory to jump into the driver’s seat in the division race.