Washington (quadriceps) is listed as a non-participant on Tuesday's practice report, Marcel Louis-Jacques of ESPN.com reports.
The Dolphins only logged a walk-through practice Tuesday and released an estimated injury report Monday, but it's worrying to see Washington listed as a non-participant twice in a row. The rookie sixth-round pick missed Week 1 and looks like he could be in danger of also having to sit out Thursday's game against the Bills.