Houston Texans running back Arian Foster seemingly put the left hamstring injury he sustained earlier in camp behind him with a fantastic performance last week against the New Orleans Saints.
But Foster's left hamstring bit him again Saturday night in a game versus San Francisco. As ProFootballTalk.com tells it, "Foster knew right away there was a problem. After a nine-yard run, Foster angrily walked off the field and threw his helmet."
Foster's night is done after eight carries and 38 yards.

Fantasy Analysis:

Oh boy. There's no specific diagnosis as of now, and we'll obviously let you know more as news breaks. If you are drafting this weekend, I wouldn't panic yet about Foster; just be aware of his recent history of hamstring discomfort. He's still a top-three pick.