O-lineman signed

The Vikings added some depth to their offensive line with the signing of Adam O'Connor, who started all 10 games at left tackle this spring for the NFL Europa-champion Hamburg Sea Devils.

O'Connor, a starting defensive end during his collegiate career at William & Mary, spent time last season on the Carolina Panthers' practice squad after signing as a rookie free agent.

To make room for O'Connor on the roster, the Vikings released defensive back Andre Maddox.