Philadelphia Eagles left guard Landon Dickerson and backup quarterback Tanner McKee didn't participate in practice on Monday before the season opener against the Dallas Cowboys on Thursday night.

The Eagles said Dickerson, who recently underwent surgery on a meniscus injury, didn't practice due to a back injury, while McKee is dealing with a right thumb injury.

Dickerson was carted off the field at Lincoln Financial last month during a training camp practice with a meniscus injury, but the Eagles didn't list that as the reason why he didn't practice Monday.

McKee missed the team's final two preseason games with the thumb injury, and it's unclear if he'll be available for the season opener. If McKee can't play, newly acquired third-string quarterback Sam Howell will be th

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