Campbell fractured his foot in a training session last Thursday.
Queens Park Rangers head physio Nigel Cox has confirmed that the striker will need an operation on his fractured foot.
“The consultant we have spoken to has advised us that the best way to deal with it is to put a pin though it,” Cox told the club’s official website.
“DJ will have surgery and will then be placed in an aircast boot for three weeks which will immobilise the foot.
“The benefit of that is it means there can be some partial weight-bearing so DJ can put weight on the foot from day one.”
He added: “But for an injury of this nature you are looking at a timescale of six-to-eight weeks before the player can resume full training.”
