Adam Caplan of Scout.com reports Thomas suffered a torn pectoral muscle while lifting weights and is "expected to miss most if not all of training camp." The report states Thomas should be healthy by the start of the season, but all of that missed prep time will hamper his return.
Thomas was projected as the starter after spending almost his entire rookie season on injured reserve. He surprisingly won the job out of training camp, but broke his left foot in the 2008 season opener.
The Dolphins were disappointed in their center and guard play last year. They signed free-agent center Jake Grove and traded center Samson Satele to the Oakland Raiders. Left guard Justin Smiley played well last year but is returning from a mangled leg.
Thomas was the feel-good story of last year's camp. The sixth-round pick was considered a project, maybe even a practice-squad player for a year.
A University of Connecticut football coach discovered Thomas during a pickup basketball game on campus and convinced him to play as a walk-on. Thomas didn't start until his senior year.