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The 6-7 Eagles look to get back to .500 for the first time since October and keep hold of first place in the NFC East. In order to do that, they'll have to survive the 11-2 Arizona Cardinals, the only team in the NFL ranked in the top four both on offense and defense.
While the Eagles don't necessarily need to win this game to win their division, no doubt they'll be on a mission to prove they belong with the class of the NFC. With that in mind, here are five things to know with the Cardinals coming to town.
1. Palmer the prototype?
Carson Palmer has been through multiple ACL surgeries. He's looked like a mediocre quarterback for much of his career. Now Palmer is a legitimate candidate for NFL MVP.
Is Palmer the prototype for the transformation the Eagles are hopeful Sam Bradford is undergoing?
The similarities are rather remarkable. Both won the Heisman Trophy in college. Both were No. 1 overall picks in the draft. Both have had to overcome injuries in the NFL. Now can Bradford follow in Palmer's footsteps and achieve a similar level of success?
Palmer is completing 64.5 percent of his passes for 4,003 yards, 8.8 yards per attempt, 31 touchdowns with just nine interceptions — good for a 107.2 rating. That being said, it didn't happen overnight. Palmer is in his third season in Cardinals head coach Bruce Arians' offense, and he's shown improvement every season.
Bradford is still in his first season in Chip Kelly's offense, but has shown improvement on an almost weekly basis. Is he dueling his mirror image on Sunday night?
2. Huge test for Eagles D
It's not as if the Cardinals have any shortage of weapons for Palmer, either. Arizona ranks first in the NFL in total offense and second in the league in scoring.
The receiving trio of Larry Fitzgerald, John Brown and Malcolm Floyd is easily the deepest, best group the Eagles have faced this season. Remember, this is the same secondary that surrendered five touchdowns in back-to-back losses against the Buccaneers and Lions.
What's less heralded is the Cardinals' ground attack, which is very good in its own right. Third-round rookie David Johnson rushed for over 90 yards in each of his first two starts and has the potential to turn any touch into a big play.
So it's not just the man under center the Eagles have to worry about. Any one of the Cardinals' skill players is a threat. Keeping any of them under wraps, much less all of them, is a huge challenge for any defense, much less one as inconsistent as this.
3. Big spot for Reynolds
With Fitzgerald typically lined up in the slot, safety Malcolm Jenkins figures to spend most his evening at cornerback covering the eight-time Pro Bowler. That means Ed Reynolds can expect to be on the field a lot, and will be charged with not letting those dangerous wideouts take the top off of the Eagles' secondary.
That's easier said than done against an offense that goes downfield a ton. The Cardinals are second only to the Pittsburgh Steelers in completions of 40 yards or more this season. They take their shots.
Last week against the Bills, we saw the good and bad of Reynolds. The first-year safety was late to get over the top on Sammy Watkins' 47-yard touchdown catch. However, when the game was on the line, Reynolds was in perfect position and wound up pulling in the interception to clinch a victory.
Sunday could very well hinge on Reynolds' play. Last season, the Cardinals defeated the Eagles on a 75-yard touchdown to Brown late in the fourth quarter.
4. Familiar foes
On that note, the Eagles and Cardinals are developing quite the little rivalry. This is the fifth season in a row the two teams meet in the regular season. The series has been a little lopsided though, with Arizona owning a 3-1 record over that span.
More relevant, however, is this will be the third time Kelly and Arians square off as the head coaches, and each of the previous two clashes were tight. Kelly's Eagles won the first meeting, 24-21, holding off a late Cardinals rally, but as mentioned above, blew the next one on a late score, falling, 24-20.
Which way will the outcome swing on Sunday? The Eagles may have one thing going for them — home-field advantage. The home team was victorious in both tilts between Kelly and Arians.
If there are any other takeaways from those games, it's that this one should come down to the wire.
5. Special teams
The Eagles might need more of an edge than the friendly confines of Lincoln Financial Field to pull off the upset, and they may have located it. After being largely detrimental to the team's success earlier in the season, special teams has made big plays each of the past two weeks to boost the Eagles.
They shocked the New England Patriots, 35-28, in part on the strength of a blocked punt and punt return for touchdowns. Field position proved pivotal in holding off the Buffalo Bills by a 23-20 final, thanks to some booming punts and excellent coverage that even forced and recovered a fumble.
The Eagles invest so much into special teams, it's no surprise the unit has played a major role in victories over the past two seasons. On Sunday night, they might be reliant on those big plays to steal a win from the Cardinals.