Lions GM Martin Mayhew is leaving the door open for 2012 first-round pick Riley Reiff to be the team's Opening Day left tackle.
The Lions have a glaring hole after Jeff Backus' retirement and failed to secure any of free agency's premier left tackles. Central Michigan's Eric Fisher could be on Detroit's radar with the fifth overall draft pick. Reiff was considered more of a right tackle or guard prospect coming out of Iowa last year, due to short arms. He'd have to win with technique on Matthew Stafford's blindside.