Miami Dolphins cornerback Jalen Ramsey is expected to miss at least six to eight weeks due to a meniscus injury that will require surgery on his left knee, NFL Network Insiders Tom Pelissero and Mike Garafolo reported Thursday. Ramsey was injured in Miami’s practice earlier in the day.

Dolphins head coach Mike McDaniel on Friday confirmed that Ramsey injured his meniscus and will undergo knee surgery at 1 p.m. ET on Friday.

“The length of this rehabilitation is kind of dictated on a couple of things that could occur in the surgery,” McDaniel explained to reporters. “The exact timeline is a little to be determined. What I can tell you is I don’t think the beginning of the regular season is really a part of the scenario. It’s going to be into the season and how deep that is depends kind of on what happens today.”

NFL Network Insider Ian Rapoport previously reported on Thursday night it’s likely Ramsey will require a full meniscus repair, which would put his return date all the way back to December. Ultimately, doctors will determine how severe the injury is, and therefore what course of action they must take to fix it. If the ligament can just be trimmed, Ramsey could be back as soon as six weeks, setting him up to return just around the Dolphins’ season opener versus the Chargers on Sept. 10 — though McDaniel expressed his doubt that Ramsey would be available Week 1 even under an optimistic timeline.

If doctors determine they need to remove the meniscus, that would increase the cornerback’s recovery timeline, Pelissero and Garafolo reported on Thursday.