Cardinals rookie WR Harrison suffers concussion ESPNCardinals’ Marvin Harrison Jr. out with concussion vs. Packers The New York TimesCardinals' Marvin Harrison Jr. collapses on field, ruled out after hit to head in loss to Packers Yahoo SportsMarvin Harrison Jr. injury update: Cardinals WR exits game with concussion vs. Packers USA TODAYCardinals' Marvin Harrison Jr wobbles, falls to ground after hit in scary scene Fox News