Ronald Darby was a rookie in 2015, but he played nothing like one with the Buffalo Bills. In his first season with the team, Darby played like a shutdown cornerback. Considering this, it should come as no surprise that Pro Football Focus recognized Darby as one of their Top 101 players of 2015. The cornerback was No. 82 on the list.
PFF noted that Darby had the eighth best coverage rating among all CBs and said the following about the cornerback:
82. Ronald Darby, CB, Buffalo Bills (unranked)
Rookie cornerbacks are not supposed to play as well as Darby did this past season. In contrast to Marcus Peters, who was very much boom-or-bust (eight interceptions and eight touchdowns surrendered), Darby was far more consistent in a down-to-down basis. He may have only notched two interceptions, but he also had 13 passes broken up and was beaten for an average of just 11.6 yards per reception.
Best performance: Week 4 versus Giants: +4.1 grade
Key stat: Darby had the eighth-highest coverage grade for CBs at +11.1.