1984 montage ha ws walter holman of pittsburgh maulers running with ball before michigan panthers player david greenwood tackles him / ms david greenwood walking on field with john banaszak during game / pontiac, michigan, usa - john banaszak stock videos & royalty-free footage00:221984 Montage HA WS Walter Holman of Pittsburgh Maulers running with ball before Michigan Panthers player David Greenwood tackles him / MS David Greenwood walking on field with John Banaszak during game / Pontiac, Michigan, USA