The Arizona Cardinals, after a day off of training camp on Wednesday, returned to State Farm Stadium on Thursday for a non-padded practice before planning on practicing in pads both on Friday and Saturday. Three players were announced out for practice by head coach Jonathan Gannon, one which will cause headlines.

Wide receiver Marvin Harrison Jr., who has been having a dominant camp, did not practice.

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Gannon said Harrison was dealing with “a little soreness” in his knee, so the team simply is “going to be smart with him,” something Gannon says regularly in offseason work and training camp.

Gannon added that Harrison is “fine” and considers him “day-to-day.”

We will see if he returns to the field Friday or Saturday.

Two offensive linemen were also out. Undrafted rookie tackle Valentin Senn sat out with neck soreness, and Gannon said they were doing testing. The other player out was offensive lineman Jake Curhan. Gannon was not asked about what his injury was.

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In other injury news, linebacker J.J. Russell, who has been in the concussion protocol since a serious collision last Thursday, was back on the field for practice but in the yellow no-contact jersey. He is a step closer to being cleared.

The Cardinals have practice on Friday from 1:50-3:15 p.m. at State Farm Stadium, and then the Red & White practice will be Saturday from 1:15-3:15 p.m.

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This article originally appeared on Cards Wire: Marvin Harrison Jr. 1 of 3 Cardinals to sit out Thursday practice