Sunderland need a proven League One striker and reported December target Charlie Wyke could star at the Stadium of Light.
Warburton leads another ex Nottingham Forest boss in the running to become Bradford City's next manager.
HITC Sport understands a number of clubs are tracking the Bradford City youngster.
HITC Sport understands the Oldham boss is a contender for the Bradford job.
HITC Sport understands Bradford have seen three bids for the striker rejected.
HITC Sport understands Bradford are set to sign Burton Albion duo.
Jack Marriott won't be joining Sunderland from League One Peterborough United - but Bradford City striker Charlie Wyke may be within budget.
HITC Sport understands Bolton, Wigan, Bradford and Oxford are chasing the Liverpool defender.
HITC Sport understands Bradford have bid for League One rivals' striker.
Championship strugglers Sunderland have made an enquiry about signing Alex Gilliead on loan from North East rivals Newcastle United in January.