The Wednesday day-off did not return a healthier, more well-rested running back group on Thursday.

Instead, a day removed from the team re-evaluating running back Thomas Rawls and tight end Jimmy Graham, the team has seen another rookie runner go down. According to The News Tribune's Gregg Bell, running back Zac Brooks is sitting out Thursday practice with an apparent injury.

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Brooks, a seventh round pick out of Clemson, had been shining in C.J. Prosise's absence. Now, he'll join him on the sidelines at least for Thursday. Brooks makes injured running back number four along with Rawls (ankle), Prosise (hamstring) and Tre Madden (arm).

Rawls and Graham's evaluation appears to have revealed that they still aren't ready to go. Neither returned to practice on Thursday, which likely means they'll remain on the physically unable to perform list.