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."