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SANTA CLARA -- Defensive coordinator Vic Fangio knows nothing more about rookies Tank Carradine and Quinton Dial than the day the 49ers drafted them in late-April.
That's because both players remain on the active/non-football injury list due to injuries they sustained during their final college seasons. Fangio said he has not even thought ahead to how they might fit into his defense.
Carradine, a second-round draft pick from Florida State, sustained a torn ACL in his right knee on Nov. 24 on a non-contact play against Florida State. Dial, a fifth-round selection from Alabama, underwent surgery in January to repair torn cartilage and ligament damage in his toe.
Both players are seen working out daily at the 49ers' practice facility, but no timetable has been given for their debuts on the practice field.
"The only time you get disappointed is when you're expecting something to happen for you're hoping something happens," Fangio said Tuesday. "When we drafted those two guys, this was the picture that was painted. So we're not surprised that they haven't hit the field, yet. And it doesn't look like they'll hit it real soon, either.
"That's what was expected when we drafted them, much like (Marcus) Lattimore, the running back. Not to his extent, but that was the picture that was painted."
The 49ers selected Carradine amid reports that some teams believed Carradine had serious problems with his knee. A pre-draft report in USA Today compared Carradine to Da'Quan Bowers, a potential top-five pick in the 2012 draft who fell to the second round because of what many teams determined to be a chronic knee issue.
Carradine, however, painted an optimistic picture about his health upon being drafted with the No. 40 overall pick.
"There's nothing wrong with my knee, and there are no long-term things that I think will go wrong with my knee because I'm healthy," Carradine said on April 26. "I did tear my ACL, but at my pro day I was able to run at full speed. If a guy wasn't healthy, he probably wouldn't have been able to run as fast as I ran or go out there and do those cutting drills."
Carradine reportedly ran a 4.75 seconds in the 40-yard dash at his pro day.
When asked if Carradine and Dial will begin the season on the PUP list, which would make them eligible for the first six weeks of the regular season, Fangio answered, "It's a real possibility, but I don't think that's been decided yet."
Lattimore is expected to open the season on the reserve/NFI list after sustained a devastating knee injury in October during his final season at South Carolina, including three torn ligaments in his right knee. The 49ers are intent on making sure Lattimore takes his rehabilitation slowly. The 49ers selected Lattimore in the fourth round.
Another draft pick, wide receiver Quinton Patton, a fourth-round pick, has been limited in practices due to an injured index finger on his left hand. Patton has worn a no-contact jersey since the opening of practices and has been instructed to only attempt to catch passes with his right hand -- or not at all.