With one of their three fifth-round picks, the 49ers drafted Appalachian State defensive end Ronald Blair, who was named the Sun Belt Conference Defensive Player of the Year after collecting 19 tackles for loss and 7.5 sacks in 2015. Blair joins a defensive front that includes Oregon defensive lineman DeForest Buckner, the first of the 49ers’ two first-round picks Thursday. The 49ers used four of their five draft picks on defensive players before selecting offensive tackles - Georgia’s John Theus and Mississippi’s Fahn Cooper - with their final two fifth-round selections.