Signed Argentina shirt from 1999, I'm not sure it's the RWC squad but it's close. 26 signatures including:
Mauricio Reggiardo
Ignacio Fernández Lobbe
Santiago Phelan
Lucas Ostiglia
Miguel Ruiz
Agustín Pichot
Gonzalo Quesada
Felipe Contepomi
Eduardo Simone
Diego Albanese
Ignacio Corleto
Manuel Contepomi
José Cilley
Gonzalo Camardón
Juan Fernández Miranda