Two down, four to go for the Buffalo Bills when it comes to signing members of the 2015 draft class.
Tight end Nick O'Leary and wide receiver Dez Lewis -- the team's last two picks earlier this month -- signed four-year contracts with the team Tuesday. O'Leary, taken in the sixth round (194th overall), won the John Mackey Award as the nation's top tight end and was a first-teams All-American as a senior at Florida State.
He played in 54 career games with 40 starts, leaving the Seminoles as the franchise's all-time leader among tight ends in receptions (114), yards (1,591) and touchdowns (18).
Lewis, the team's seventh-round pick (234th overall), played in 48 games for Central Arkansas, with 36 stars. He was a three-time All-Southland Conference selection, and finished with 197 catches for 2,618 yards and 24 touchdowns.