2012 records: Eagles 4-12; Redskins 10-6

Line: Redskins by 31/2 points; Over/under:

TV announcers: Mike Tirico, Jon Gruden, Lisa Salters (ESPN)

Radio: 97.3, 94.1 FM, 610 AM

Forecast: Mostly cloudy. High 78, low 68. Chance of rain 10 percent. Wind south-southeast at 8 mph (weather.com).

David Weinberg's pick: Eagles 31, Redskins 28 (2012 season record: 9-7)

Last time met: The Redskins beat the Eagles 27-20 on Dec. 23 in what turned out to be Eagles coach Andy Reid's final home game at Lincoln Financial Field. Robert Griffin III threw two touchdown passes in leading the Redskins to their sixth straight victory.

Eagles' best-case scenario: The Chip Kelly era begins with an impressive win. Quarterback Michael Vick and the high-octane offense move up and down the field at will. Running back LeSean McCoy rushes for 120 yards and two TDs. Griffin is affected by having sat out the entire preseason and does not play well.

Eagles' worst-case scenario: Griffin shows no rust and embarrasses the Eagles' new, 3-4 defense by throwing three TD passes. Redskins running back Alfred Morris rushes for 150 yards. Redskins coach Mike Shanahan develops a defense that contains Vick and company.

Keep an eye on: Morris (No. 46). He enjoyed a tremendous rookie season in 2012, rushing for 1,613 yards and 13 touchdowns.

Notable numbers: Redskins lead series 81-71-6. ... Eagles are 10-6 at FedEx Field. ... Eagles are 33-45-1 in season openers. ... Eagles have 21 players who were not on the team last season. ... Redskins are 25-19 in season openers since the NFL/AFL merger in 1970. ... Redskins linebacker London Fletcher will make his 200th straight start and will play in his 241st straight game. ... Redskins coach Mike Shanahan ranks 11th all time in the NFL with 175 victories.

Assessing the offenses

Eagles: No one really knows was to expect from Kelly's offense. Vick beat out Nick Foles for the starting job and played well in the preseason. Tight end James Casey, wide receiver DeSean Jackson and McCoy are expected to play major roles. Rookie tackle Lane Johnson joins an offensive line that was riddled by injuries last season.

Redskins: Griffin sat out the entire preseason after undergoing offseason knee surgery. Morris was the NFL's top rookie running back last season. All five offensive linemen are back. Wide receivers Pierre Garcon, Joshua Morgan and Santana Moss all caught at least 40 passes last season.

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Assessing the defenses

Eagles: Defensive coordinator Billy Davis has installed a 3-4 scheme. Five of the starters were not with the team last season. Ends Cedric Thornton and Fletcher Cox, and linebackers Trent Cole and Mychal Kendricks are all playing new positions. Cary Williams and Bradley Fletcher replace Nnamdi Asomugha and Dominique Rodgers-Cromartie as starting cornerbacks.

Redskins: Inside linebacker Fletcher is always around the football. Outside linebacker Brian Orakpo is back after missing most of last season with a torn pectoral muscle. Outside linebacker Ryan Kerrigan is also a force. Rookie Bacarri Rampo, a sixth-round draft pick, is the starting free safety.

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Assessing the coaches

Eagles: The Chip Kelly era is about to begin.

Redskins: Mike Shanahan led the team to the NFC East title in 2012.

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Intangibles

Eagles: No one knows what to expect.

Redskins: RGIII's readiness is a mystery.

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Other views

Mike Jones, Washington Post:

"Redskins players began preparing for a fast-paced attack back in training camp and believe that they will be well-prepared. Cornerback DeAngelo Hall actually said that he doesn't think the tempo of the scheme will be that unlike some of the uptempo attacks that he and his teammates have already faced in the past. He believes that he and his teammates are conditioned well enough to be able to keep up with the Eagles."

Key matchup

Ryans (No. 59) vs. Morris (No. 46). For all the hype about Griffin's return, Morris is still a big key in the Redskins' offense because of his ability to take some of the pressure off the quarterback. Ryans played very well as a middle linebacker last season, but is less comfortable as part of a 3-4 alignment.

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