The 49ers have their first off day of training camp Monday, so it didn't come as much surprise that the team took a cautious approach with their starting duo at cornerback.
Tramaine Brock looked like he tweaked an ankle in a passing drill and didn't participate in 7-on-7s or full-team drills.
Chris Culliver, who is practicing for the first time since suffering his knee injury early in last year's training camp, left the field early but did not appear hurt.
Johnson fared better in team drills than in the one-on-one coverage drills.
In the red zone, Johnson broke up a fade route from Colin Kaepernick to Anquan Boldin in the right corner. Later he nearly intercepted Kaepernick when trying to hit Brandon Lloyd, but Johnson dropped the ball. He also broke up an end zone pass to Stevie Johnson.
Hyde continues to look the part with burst and quick feet, but the real litmus test will come in preseason games.
Hampton, who was praised by Jim Harbaugh for his patience over the last two seasons early Sunday, got a number of looks on both check-down passes and running plays. Don't be surprised to see the 49ers very active on the waiver wire looking for running backs in the coming days.
Reserve guard Fouimalo Fonoti left practice early with an apparent left leg injury. The severity of the injury is not yet known.
Vance McDonald made a pair of touchdown catches during a red zone drill. He also made a nice leaping grab deep over the middle with C.J. Spillman in coverage.
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