The San Francisco Examiner reports Langkilde must remain in the United States while awaiting trial on two counts of battery, one count of assault and one count of misdemeanour.
The charges relate to allegations that the 22 year old Langkilde attacked several Welsh players in the tunnel leading to the changing rooms after Samoa's 24-19 loss to Wales on Sunday in the Challenge quarter finals.
Police later arrested Langkilde at his hotel.
