Marshall (left) is said to be the subject of three unsuccessful bids
Wolves had made just one new signing this summer, but are targeting up to eight new additions following last week's buy out by Chinese conglomerate, Fosun International.
A new ear is underway at Molineux
New board member Jeff Shi told the Express & Star this week he hoped to establish a link-up with Portuguese champions Benfica and deals for Pele and Helder Costa are set to be concluded, along with another for former Eagles loanee Silvio of Atletico Madrid.
Pele, playing against parent club Benfica, makes a tackle
But Wolves are also considering home-grown talents, if the Daily Mail are to be believed.
Their bids for Marshall, who has also been used at right-back by Blackburn, have not been disclosed. However, the report claims Brighton & Hove Albion saw an offer of £4 million rejected last season.
The 25-year-old is said to have been promised a new contract at Ewood Park, but is 'open to leaving' after three seasons in Lancashire.
Marshall, who was previously employed by Stoke City and Leicester City after beginning his career at Crewe Alexandra, played alongside Wolves captain Danny Batth on loan to Sheffield Wednesday.
Marshall (left) and Batth were hits at Hillsborough