Arian Foster aggravates hamstring injury
Posted by Gregg Rosenthal on August 27, 2011, 9:10 PM EDT

Getty ImagesTexans running back Arian Foster canít seem to shake his hamstring troubles.

After missing the first half of August with a left hamstring injury, Foster left Saturdayís preseason game after aggravating the the same injury, according to John McClain of the Houston Chronicle.

Foster knew right away there was a problem. After a nine-yard run, Foster angrily walked off the field and threw his helmet. He finished with eight carries for 38 yards.

The third-year player has unquestioned talent, but he must show this year he can hold up physically after such a big workload last year. Itís too early to panic, but this month has been concerning for Texans fans. (And Fosterís fantasy owners.)