ALAMEDA, Calif. (AP) The Oakland Raiders will begin training camp with at least three players sidelined by injuries.

The team announced Monday that rookie offensive Vadal Alexander has been placed on the non-football injury list and running back Roy Helu Jr. and undrafted rookie defensive end Greg Townsend Jr. are on the physically unable to perform list. The team did not disclose the injuries for the three players.

They will count against the 90-man roster, but will not practice until they are healthy.

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First-round safety Karl Joseph, who missed the offseason program recovering from knee surgery, is expected to be ready to go when training camp starts on Friday.

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