DETROIT -- Lions running back Kevin Smith is hurt again.
Smith left Thursday's injury-filled game against Green Bay with a right ankle injury during the first half. He said after the game that an X-ray was negative.
"It wasn't that bad, it's just a matter of I couldn't cut," Smith said. "My X-ray came back negative. ... I think we've just got to do further tests."
Coach Jim Schwartz said he didn't know how many of the injuries are long term.
"Too early to say," he said. "But let's be optimistic. Let's hope none of them are."
Smith rushed for 140 yards last weekend against Carolina, giving the Detroit running game a much-needed boost. He struggled the last two seasons because of knee and thumb injuries, and the Lions actually let him go during the offseason before bringing him back earlier this month.
Information from The Associated Press contributed to this report.