Dallas has used a first-round pick on an offensive lineman in two of the last three seasons. It has used a fourth-round pick or higher on the position in

Later on in Round 2 Adams has the Cowboys filling their running back hole with Iowa Hawkeyes star Kaleb Johnson, who finished first in the Big 10 and sixth in all of college football with 1,537 rushing yards on 240 attempts, to go along with 21 touchdowns.

Two people with knowledge of the decision say Zack Martin is retiring after a decorated career that included seven All-Pro seasons at right guard with the Dallas Cowboys.