↑ Pasquarelli, Len (22 de marzo de 2007). «Expect Goodell to crack down on poor behavior». ↑ Florio, Mike (23 de abril de 2012). «League unexpectedly expands rosters from 80 to 90». Pro Football Talk. ↑ Diario El Mundo Deportivo (ed.). ↑ «Paul Tagliabue 1989-2006». NFL Commissioners. ↑ Smith, Michael David (22 de julio de 2011). «NFL drops third quarterback rule, camsieta psg 2023 46 active players on game day».
