Jamaal Charles, just a couple of strides before he was injured. (Rick Osentoski / AP)

Charles was the second-leading rusher in the NFL, behind Houston’s Arian Foster, with 1,467 yards last season as well as a key player for the Chiefs, who los Eric Berry for the season last week. “I don’t know the extend of his injury,” Thomas Jones said of Charles, “but it’s a terrible loss for us — for our team.”

Foster returned for the Houston Texans, but spent most of the second half on the sideline as Ben Tate got the carries in Houston’s victory in Miami. Foster aggravated the left hamstring injury that has bothered him since preseason. (You know, when his leg filled with “anti-awesomeness.”) “I pulled myself out because I felt it getting a little tight,” Foster said (via CBS Sports.com). “But I have to realize that it's only Game 2. It's a long season, so I have to get healthy.”

The extent of injuries to Vick and Romo won’t be known until a little later. Vick suffered a concussion in Philadelphia’s loss to Atlanta and Romo broke a rib in Dallas’ overtime victory in San Francisco. Vick, according to the Eagles, was just a little off on the concussion tests and will undergo the mandated battery of tests to determine whether he can play Sunday.

Antonio Gates wasn’t hurt, but he found himself a marked man in San Diego’s loss to New England. He was hit at the line and double-teamed, which forced the Chargers to emphasize Vincent Jackson. He caught 10 passes for two touchdowns and 172 yards. Gates came up with nuthin’ — no catches for the first time since Dec. 2008 (against Oakland).

Patriots tight end Aaron Hernandez sprained his medial collateral ligament (his knee hit Bob Sanders’s helmet) and is expected to be out one-to-two weeks.