The 5-foot-11, 195-pound Hough had originally been set to play for Oregon this season but instead gives Arizona a much-needed boost to its depth at corner. Sophomore Tony Wallace was removed from the roster on Monday, presumably because of academic issues, while last week it was learned that incoming freshman Jhevon Hill would instead attend Arizona Western.
Hough appeared in 29 games for UNLV, starting 17, recording 19 tackles (one for loss) in 2017. He had four interceptions as a freshman in 2015.
Arizona begins 2018 training camp on Friday, Aug. 3.