The Philadelphia Eagles were missing two defensive starters during Tuesday's practice; both inside linebacker Mychal Kendricks and Fletcher Cox sat out.

Kendricks suffered a calf injury during the Eagles-Colts game in Week 2 and did not practice last week. Kendricks was ruled out for the Eagles-Redskins game on Friday and did not play. It was reported last week that Kendricks may also miss the Eagles' Week 4 game against the San Francisco 49ers, and early indications point to that being the case. Kendricks, who is still being described as day-to-day, sat out of the team's practice on Tuesday.

With Kendricks out, the Eagles have been using a committee of linebackers to replace him. Backup Emmanuel Acho played 35% of the defensive snaps while Casey Matthews played 31% and rookie first round pick Marcus Smith II played 21%. Kendricks' prowess as a pass rusher has been most noticeably missing during his absence.

Fellow defensive starter Fletcher Cox also sat out of practice. Cox played 83% of the team's snaps during the Eagles' most recent game and did not leave the game with injury, so it's a little curious to see him sitting out. Fletcher was listed as a limited participant last week on Thursday's injury report but had been ruled probable for the Eagles-Redskins game. Derrick Gunn of CSN Philly notes that Cox is "dealing with some lower back soreness but is OK."

Starting running back LeSean McCoy practiced despite taking a big shot to the head against Washington.

Offensive lineman Matt Tobin was a full participant in practice on Tuesday after sitting out on Sunday. Tobin lined up as the team's starting left guard, which is good news for the Eagles. More on the offensive line situation here.

Rookie wide receiver Josh Huff was seen at practice. Huff was limited in practice last week and hasn't been fully healthy since suffering an AC sprain in mid-August. It appears Huff might be healthy enough to play this week.

Backup safety Earl Wolff was seen practicing. Wolff sat out of the team's Week 3 game with a knee injury that seemed to flare up closer to game-day.

Cornerback Cary Willliams, who criticized Eagles coach Chip Kelly for pushing players too hard in practice following the team's win on Sunday, was also a participant. Williams apparently apologized for his comments.

The Eagles will release their first official Week 4 injury report tomorrow on Wednesday.