Karim, a sixth-round draft pick from Southern Illinois, was the Jaguars' primary kick returner, but he injured his left hand during Saturday's preseason game against the Miami Dolphins and had surgery Tuesday. Karim is expected to return, but Jaguars coach Jack Del Rio said the rookie won't be available for Saturday's game at Tampa Bay.
Smith was hampered by injuries last season and played in just four games. His most productive year came in 2007, when he ran for 407 yards and two touchdowns.
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