Eagles Injury Report: Lane Johnson preparing to start at left tackle while Jason Peters sits out

The Philadelphia Eagles released their second official injury report in advance of their Week 9 game against the Dallas Cowboys.

The big news is that Jason Peters did not practice for the second straight day. Eagles players who don't practice on Thursday typically don't play on Sunday, but nothing is set in stone just yet. Chip Kelly said a final determination won't be made on Peters until this weekend.

If Peters can't play, expect Lane Johnson to start at left tackle. The team's starting right tackle told reporters he's spent this week exclusively working on the left side of the line. The Eagles view Johnson as their left tackle of the future, so this will be a good test for him if he ends up playing there. Johnson will potentially have the tall task of blocking talented pass rusher Greg Hardy.

With Johnson moving out to left tackle, Dennis Kelly has been taking practice reps at right tackle. Kelly had previously been filling at right guard with Matt Tobin moving out to tackle, but it appears Tobin will stay at right guard. So, to recap, here's what the Eagles offensive line will look like if Peters can't play:

Left tackle - Lane Johnson
Left guard - Allen Barbre
Center - Jason Kelce
Right guard - Matt Tobin
Right tackle - Dennis Kelly

The Eagles struggled to block the Cowboys well the last time these two teams played in Week 2. Now Philadelphia might have to deal with a makeshift lineup. It goes without saying that this is a concern for the Eagles.

In other big news, running back Ryan Mathews did not practice at all after being a limited participant on Wednesday. That sure is weird. Earlier this week, Mathews told reporters his groin healed and he expects to play in Dallas. What happened since then? Mathews has been Philadelphia's best rusher this season, so not having him available against the Cowboys wouldn't be good for the Eagles.

Elsewhere, DeMeco Ryans did not practice. If the veteran doesn't play, expect Jordan Hicks, Mychal Kendricks, and the returning Kiko Alonso to take most of the snaps at inside linebacker.

Rookie wide receiver Nelson Agholor was a full participant in practice again, which bodes well for his playing chances.

Philadelphia Eagles Injury Report (Thursday)

Did Not Participate

OT Jason Peters (back)
LB DeMeco Ryans (hamstring)
RB Ryan Mathews (groin)

Full Participation

WR Nelson Agholor (ankle)
LB Kiko Alonso (knee)
DE Brandon Bair (groin)
LB Bryan Braman (back)

Dallas Cowboys Injury Report (Thursday)

Did Not Participate

S Barry Church (ankle)

Limited Participation

WR Dez Bryant (foot)
TE James Hanna (ankle)
DE DeMarcus Lawrence (back)

Full Participation

WR Brice Butler (hamstring)
QB Matt Cassel (knee)