By Ed Benkin

PHILADELPHIA (CBS) - The Eagles were back at work at Lehigh on Saturday with a new starting left tackle.

Andy Reid announced after the team’s Saturday morning walk-through that King Dunlap is now lining up at left tackle with the top unit, while Demetress Bell has been demoted to the second unit. Reid said the move was less about the play of Bell, and more about giving Dunlap a chance to compete for the starting spot.

“I mentioned their is competition at positions,” said Reid. “Left tackle is one of those positions, so King is scheduled to work with the ones. King was told that when he was resigned here, he’d have an opportunity to compete for the starting position.”

Reid also said quarterback Mike Kafka suffered a break in his non-throwing hand during Thursday’s preseason opener. Reid said Kafka’s hand should be healed in about three weeks, but Kafka’s work will be limited in practice until he has recovered from his injury

“He’ll come out to practice,” Reid said. “Everything where he doesn’t have to take a snap, he’ll be able to do. We’ll keep an eye on (his hand) as we go.”

Rookie quarterback Nick Foles, who threw two touchdown passes on Thursday, will take snaps with the second unit while Kafka recovers.

The Eagles will continue with workouts at Lehigh before breaking camp on August 15th.