Melifonwu (hand) was a limited participant in Tuesday's walkthrough, C. Isaiah Smalls II of the Miami Herald reports.
Melifonwu was also listed as limited on Monday's estimated practice report. He played 86 percent of defensive snaps during Miami's win over the Falcons in Week 8 before being forced off the field due to a hand injury. With Ashtyn Davis (quadriceps) still not practicing, it will be crucial for the Dolphins' secondary to have at least him or Melifonwu able to suit up and start at safety versus the Ravens on Thursday.