The Sports Xchange

The Buffalo Bills have all six members of their 2015 draft class under contract after second-round pick Ronald Darby signed a four-year deal worth a reported $4.6 million on Tuesday.

The Bills announced the signing but did not disclose financial terms.

The speedy cornerback was the 50th overall pick out of Florida State. Darby had 79 tackles, 16 pass breakups in 42 career games and 23 starts spanning three seasons with the Seminoles.

Darby was named ACC defensive rookie of the year in 2012 and was a lock-down corner during Florida State’s national championship season in 2013, allowing just nine completions and no touchdowns while being targeted 27 times.

With the Bills returning Stephon Gilmore and Leodis McKelvin as the starting corners, Darby is expected to contend for a backup role.