Daryn Colledge downgraded to out versus Lions; Dallas Thomas to start at left guard

Last week, Miami Dolphins guard Daryn Colledge missed a game for the first time in his nine-year NFL career. It did not take long for the number of missed games to continued to grow; the Dolphins announced Saturday afternoon that Colledge has been downgraded from doubtful to out for Sunday's contest against the Detroit Lions.

Colledge is dealing with a back injury,

In his place, second-year offensive lineman Dallas Thomas will likely start for the fourth time this season. He started last week in Colledge's place and started two games earlier in the season at right guard, replacing Shelley Smith and Nate Garner after injuries to both players.

Thomas has made the most of his playing time this year. After seeing limited snaps as a rookie tackle, he appears to be transitioning into a utility reserve for Miami, capable of filling in wherever needed.  He has also filled in at right tackle when rookie Ja'Wuan James has shifted to left tackle as Branden Albert has rested.

The Dolphins kickoff against the Lions at 1pm ET Sunday.