Brown has failed to feature under Roeder after only scoring one goal this season for the Canaries. The frontman who had a spell at Sunderland will join up with his team mates in time for Preston's home clash with Watford.
Irvine is still on the hunt for more fresh blood with a defender high on his priority list to cover absences at the back. There are also rumours that another forward may well join the squad as well as some across the middle.