Overview

• Alexander Mattison underwent season-ending neck surgery after his injury in Sunday’s preseason opener against the Chicago Bears.
• He was transported by ambulance to a Chicago hospital before undergoing the procedure, according to ESPN and Sun Sentinel reports.
• The Dolphins have invited 30-year-old free agent Jamaal Williams for a workout today to provide the power back role that Mattison was signed to fill.
• De’Von Achane remains the undisputed starting running back despite limited snaps in the opener, recording 22 yards on three carries.
• Second-year back Jaylen Wright and rookie Ollie Gordon II showed flashes in training camp and the opener but have yet to prove themselves in critical short-yardage situations.