St George Illawarra Dragons player Jack de Belin has had two additional charges laid against him over the alleged joint rape of a young woman in Wollongong.

Mr de Belin and Shellharbour Sharks player Callan Sinclair were arrested and charged with aggravated sexual intercourse without consent following an alleged incident at a Wollongong apartment last year.

The alleged 19-year-old victim claims the assault occurred in early on Sunday, December 9.

Both men have pleaded not guilty.

In court on Wednesday, two additional charges were laid against de Belin, relating to the same alleged victim.

De Belin was sidelined under the NRL’s new stand-down rules where any player charged with a serious indictable offences carrying a jail term of more than 11 years is banned from playing.

If found guilty, the former NSW State of Origin forward could face a custodial sentence of up to 20 years.

De Belin unsuccessfully challenged the NRL’s policy in the Federal Court.

The Federal Court ruled the NRL’s policy was necessary to protect the legitimate interests of the Australian Rugby League Commission and the NRL.

-ABC