Philadelphia Eagles safety Nate Allen is listed as questionable on the team's injury report, making it a 50-50 chance he plays Sunday when the team travels to Houston.

Allen injured his hamstring in last week's 24-20 loss to the Arizona Cardinals, a game in which he was beaten for a 75-yard touchdown pass from Carson Palmer to rookie speedster John Brown in the final minutes.

Tuesday, Allen took part in the team's abbreviated practice, but then sat out Wednesday and Thursday, although he did some light jogging and stretching, Thursday.

If Allen cannot play, second-year safety Earl Wolff would likely get the start, although Eagles coach Chip Kelly wouldn't say that was a definite.

Special teams ace Chris Maragos and rookie Jaylen Watkins could also see time, if Allen is inactive.

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