Two teenage boys accused of killing a Melbourne doctor in an alleged home invasion will fight their charges after having the case fast-tracked. 

Both 16-year-olds pleaded not guilty in the Children’s Court of Victoria via video link on Thursday after being charged with the murder of Dr Ashley Gordon.

Dr Gordon, 33, died after an alleged confrontation with the two teenagers who allegedly broke into his home in Doncaster in Melbourne’s east in January.

Prosecutor Peter Pickering said the two accused boys showed a friend “a bloodied knife” in the aftermath of the alleged killing.