PHILADELPHIA -- The battle for the Philadelphia Eagles' backup quarterback job is all but over.

Mark Sanchez put more distance between himself and fellow USC alum Matt Barkley with an impressive performance in Friday's 34-28 preseason loss to the Chicago Bears.

Sanchez followed starter Nick Foles and played the entire second quarter. He completed 7 of 10 passes for 79 yards and guided the Eagles to two touchdowns while he was in the game. He didn't throw any touchdowns passes, but didn't have any interceptions either.

Barkley, who played the third quarter, was 7-for-16 for 73 yards. He had a 14-yard touchdown throw to running back David Fluellen, but also had an interception following a recovery of a Bears fumble.

"We were very excited when we had a chance to get Mark," coach Chip Kelly said. "He's played 68 games in this league. He took his team to two AFC Championship Games. So he has a lot of experience.

"The one thing you're starting to see is he's healthy. If anybody has any questions about his arm rehabbing (he had surgery to repair a shoulder injury) after that throw he made right at the end of the first half, he threw the ball 68 yards in the air. He's back and he's excited about playing football."

Barkley likely will open the season as the team's No. 3 quarterback behind Foles and Sanchez. But he's feeling a little heat from the team's fourth quarterback, G.J. Kinne, who completed 8 of 10 passes for 88 yards against the Bears, albeit against third- and fourth-stringers.

The Eagles, who will play the New England Patriots on Friday, will fly to Foxborough Monday night and hold joint practices with the Patriots on Tuesday, Wednesday and Thursday.

"There will be a lot of physical play on Tuesday and Wednesday," Kelly said. "On Thursday, we'll do some situational work with them."

The two teams held joint practices at the Eagles' training facility last summer before their preseason game at Lincoln Financial Field.

All-Pro left guard Evan Mathis played every offensive snap last season and was called for holding just four times all year. In Friday's preseason loss to the Bears, he picked up two holding penalties in the first quarter.

All-Pro left tackle, Jason Peters, who didn't have any holding penalties last season, also was called for a hold. Wide receiver Jeremy Maclin drew a facemask trying to get off the line of scrimmage.

"The thing that hurt our offensive line Friday was the penalties," Kelly said. "We got too many of them. We were moving the ball. Two of them negated big gains for us."

Rookie second-round wide receiver Jordan Matthews has been the star of training camp this summer, making big plays on a daily basis. But he didn't play particularly well in the Eagles' first preseason game against the Bears. He had four catches for just 14 yards and had two drops.

"I thought he was inconsistent," Kelly said. "I don't know if he was pressing or what. But there were some inconsistencies there."

Notes: Wide receiver Riley Cooper returned to practice Sunday and did some limited work. He's been sidelined by a foot injury for the last 10 days. ... Nose tackle Bennie Logan returned to practice Sunday after being sidelined the last five days with a leg injury.