The Black Cats are yet to sign a proven striker after the departures of Asamoah Gyan and Nicklas Bendtner, and have reportedly turned to the Scot in their search for a goalscorerhere.
Sunderland have made a formal offer for Wolves striker Steven Fletcher, according to the Daily Mail.
The bid is understood to be below the relegated club’s valuation of the 25-year-old, who has two years remaining on his contract.
Black Cats boss Martin O'Neill has confirmed that he is in the market for a striker recently after the departures of Asamoah Gyan and Nicklas Bendtner.
Fletcher scored 12 Premier League goals for the Midlands club last term, having recorded 10 the previous campaign after joining from Burnley for a fee of £6.5 million that matched the club's record signing.
In turn, the Wearside club are in search of a proven striker to replace Gyan, who has completed a move to Al-Ain, and Bendtner, who returned to Arsenal after his loan spell, and complement the injury-troubled Fraizer Campbell and the inexperienced Connor Wickham and Ji Dong-Won.
Earlier in the transfer window O’Neill signed defender Carlos Cuellar from Aston Villa, and last week he revealed the club are still monitoring various players. He has so far offloaded centre-back Michael Turner to Norwich, as well as releasing goalkeeper Craig Gordon.
Wolves meanwhile, under newly appointed manager Stale Solbakken, have signed strikers Frank Nouble from West Ham and Bjorn Sigurdarson from Lillestrom.