SANTA CLARA -- Running back Kendall Hunter went down early in practice on Friday with an apparent right knee injury during a 7-on-7 drill.
Hunter sustained the injury when his knee buckled after catching a swing pass from backup quarterback Blaine Gabbert. After he was checked by medical staff for a number of minutes, Hunter walked back to the locker room under his own power for further evaluation. There was no immediate update on Hunter's condition.
Hunter, 25, has rushed for 1,202 yards with a 4.6-yard average in three seasons since he was selected by San Francisco in the fourth round of the 2011 NFL Draft.
He sustained a partially torn left Achilles against the New Orleans Saints in November of 2012. He returned to action last season and rushed for 358 yards on 78 rushing attempts.
Hunter entered training camp as the No. 2 running back behind Frank Gore and ahead of Carlos Hyde, LaMichael James and Jewel Hampton. Marcus Lattimore is on the non-football injury list as he rehabilitates hamstring and knee issues.