AI-assisted summary Dolphins cornerback Kader Kohou suffered a lower-body injury during a one-on-one drill against Tyreek Hill.

Kohou initially limped badly but was able to walk inside with trainers, showing improvement.

Kohou is a key member of Miami’s revamped secondary.

MIAMI GARDENS — The first day fans are being welcomed at Miami Dolphins practice is a day concern swept over the crowd.

Cornerback Kader Kohou was defending Tyreek Hill in a one-on-one drill when Kohou took a bad step and went down with a lower-body injury.

There was no immediate word on the severity of the injury. The positive news is that Kohou got up after initially limping badly and receiving attention on the sideline as a concerned defensive coordinator, Anthony Weaver, looked on.

Kohou walked inside with trainers, his steps improving as he got closer to the building to the point that the limp was barely noticeable.

There was no contact on the play.

Need a break? Play the USA TODAY Daily Crossword Puzzle.

Kohou is being counted on as a key member of a revamped secondary that continues in transition. Earlier in the day, the Dolphins announced the signing of cornerback Jack Jones. Still, Kohou and safety Minkah Fitzpatrick are the expected leaders in the defensive backfield.

Receivers Jaylen Waddle and Hill offered encouragement to Kohou before he went inside to be evaluated.