OWINGS MILLS — The Ravens got a potentially huge boost when safety Kyle Hamilton was back at practice Thursday after missing the previous day with a left knee injury.

Hamilton originally injured the knee in Week 14 against the Rams, but he has not missed a game.

He had to leave the Monday night game against the 49ers with the same ailment.

Hamilton did not appear to actively participate in drills during the media viewing portion of practice. However, he was able to run and backpedal.

The Ravens play the Miami Dolphins on Sunday at 1 p.m. at M&T Bank Stadium with the top seed in the AFC on the line.

The coordinators speak to the media on Thursday and defer all questions regarding injuries to coach John Harbaugh.

When asked about Hamilton’s injury on Wednesday, Harbaugh replied: “We’re just kind of working through all those kinds of things right now.”

Hamilton was named the AFC Defensive Player of the Week after a dominant performance in the Ravens’ 33-19 win over San Francisco on Christmas night. He registered five tackles (three solo), two interceptions, and a career-high three passes defensed. He became the youngest Raven in franchise history at 22 with a multi-interception performance.

Hamilton also ended a 49ers streak of 10 consecutive red-zone drives resulting in a touchdown when he picked off quarterback Brock Purdy in the end zone in the first quarter.

More practice notes

Rookie wide receiver Zay Flowers (calf) and cornerback Brandon Stephens were not at practice during the session open to the media.

Flowers has been a solid addition and leads the team in receptions (74), and yards (752) to go along with four touchdowns.

Stephens has been one of the team’s best defensive backs.

Cornerback Jalyn Armour-Davis is also still in concussion protocol.

Guard Kevin Zeitler (knee/quad) returned to practice on Thursday, so that’s encouraging news for the offensive line.

However, tackle/guard Patrick Mekari (concussion) was in a red no-contact jersey.

Dolphins also dealing with injuries

Wide receiver Jaylen Waddle (ankle) and running back Raheem Mostert (knee/ankle) were not at practice for the Dolphins on Thursday after also missing the previous day.

Mostert is ranked fourth in the NFL with 1,012 yards rushing and is averaging 4.8 yards per carry with 18 touchdowns.

Waddle is second on the team with 104 receptions for 1,014 yards with four touchdowns. He caught 11 passes for 171 yards with two touchdowns in the Dolphins’ 42-28 victory over the Ravens last season.