"I don't anticipate it affecting his status," Harbaugh said.
Daniels returned to practice Monday after missing the past two preseason games and participated in position drills. Harbaugh reiterated that Daniels doesn't have a tear or pull but there is swelling in his legs.
"He's not right, or we would've played him," Harbaugh said. "We also felt like he had so many reps in this offense [that the Ravens felt] let's take a week or week and a half and let him get fully recovered."
Daniels' season ended last year after he broke his leg. He wasn't available for comment Monday.
The plan is to pace Daniels throughout the week.
"We didn't want to bring him back too fast and throw everything at him today," Harbaugh said. "He's working his way back in."
The Ravens signed Daniels to a one-year, $1 million deal that didn't include a signing bonus. If the Ravens were to cut Daniels, there would be no salary-cap implications.
Harbaugh said he expects Daniels to have a full practice by the end of the week, which would indicate he'll be ready for the season opener on Sept. 7.
Daniels is expected to be the Ravens' No. 2 tight end behind Dennis Pitta. He is one of the few Ravens who has previous experience in Gary Kubiak's offense.
"I would be surprised if he doesn't practice on Friday fully," Harbaugh said.