The Dolphins and Marshall revealed Wednesday he underwent surgery that will sideline him until training camp. Marshall has been scratched from voluntary workouts and a mandatory minicamp later this month.
Neither Marshall nor head coach Tony Sparano would reveal what body part was operated on, but it's reportedly was a hip. Sparano did say the surgery was to "clean things up," but wasn't anticipated when the Dolphins traded a pair of second-round draft choices to the Denver Broncos to obtain Marshall.
"It's definitely frustrating, but you know, some things you can't control," Marshall told reporters. "In my past, I learned that, not to worry myself and hold my head down when I can't control it. I'm just going to do the best I can with the mental reps and prepare myself that way."
While the Dolphins conducted an open practice at their facility, Marshall rode a stationary bike and roamed the field as an observer.
Marshall's absence, in addition to disrupting his on-field development with Henne, will impact offseason workouts.
He'll be a transforming figure in the offense. The Dolphins have been a run-dominant team for the past two seasons, but they haven't had a receiver like Marshall, who has recorded more than 100 receptions three straight years.
Without him on the field, the Dolphins won't get a true indication of how their offense will look until August.
On a related note, Marshall has chosen to wear Ted Ginn's old jersey, No. 19 -- for now. He wore No. 15 in Denver, but that belongs to Davone Bess in Miami.