Thomas, a second-year player, played on 81.2 percent of Miami's special teams snaps this season and 14.2 percent of defensive snaps. He was injured during the fourth quarter of the Dolphins' 37-0 win over the Chargers on Sunday
The Dolphins signed Thomas from the 49ers' practice squad late last season. In his first game with Miami, he intercepted a pass in the end zone late in the fourth quarter to give the Dolphins a win over the Patriots.
Thomas had recorded 15 tackles in eight games this season, including a team-leading nine special teams tackles.
Miami improved to 5-3 with Sunday's victory. The Dolphins play at the Detroit Lions on Sunday.
- Dan Gartland