ALAMEDA — Cornerback DJ Hayden and linebacker Kevin Burnett were among the players unable to practice for the Raiders on Monday, though coach Dennis Allen managed to get all 90 of his players to attend the voluntary session.

Hayden and Burnett are nursing ankle injuries, Allen said. Both were on the field Monday, but neither participated in any of the full-team drills. Hayden's right foot is in a protective boot.

Second-year running back Latavius Murray, guard Lucas Nix and defensive lineman Anthony Smith were the only other players unable to practice.

Burnett is a returning starter and a well-experienced veteran, so his absence from practice isn't viewed as a big concern.

Hayden, however, is competing for a starting spot this season for the first time, so he can't afford to miss much time.

Hayden missed almost all of the offseason workouts last season, and he was limited for part of training camp, while he recovered from a surgery to repair a ruptured vein that he suffered in his final collegiate season.

Hayden talked last week about how much stronger he feels and how his confidence is much higher this year as a result of being healthy enough to practice on a regular basis.

Allen said Hayden rolled his ankle during practice last week. The injury doesn't appear serious enough to keep Hayden out of practice for very long.

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