Darkwa worked out for the Bills on Thursday, Ian Rapoport of NFL Network reports.
Darkwa has reportedly drawn interest from several teams this offseason, but this is his first visit since being medically cleared for football activities in the wake of an offseason knee procedure. The 26-year-old back managed 4.4 yards per attempt last season behind a subpar Giants offensive line, but struggled in pass catching. It makes sense that Buffalo would be interested in Darkwa after his breakout season, especially given the uncertainty surrounding top running back LeSean McCoy.