The 28-year-old will likely be allowed to depart the 20-time English champions this summer after making just seven appearances in all competitions during the 2021-22 season.
A move to Craven Cottage has been mooted for the former Villarreal man, who only has two years left to run on his contract with the Red Devils.
The 28-year-old has struggled with injuries over the past couple of years but is one of the most in-demand free agents on the market after racking up 115 goals in 293 games for the Old Lady.
Inter Milan and Man United have both been linked with moves for Dybala, but according to AS, Napoli have now made contact over a potential move for the Argentina international.
Inter are still said to be the favourites to sign Dybala, although the Nerazzurri have already bolstered their attack by welcoming Romelu Lukaku back to the club on loan from Chelsea.
However, the Gunners have now switched their focus to Ajax's Lisandro Martinez and are said to have identified Benfica's Alex Grimaldo as their top alternative to the Argentine.
The 20-year-old is now poised to travel to England next week and complete his medical, and Thomas Frank's side will sign the left-back after trying and failing to strike a deal in January.
Hickey was on the books at Celtic and Hearts before signing for Bologna, where he registered five goals and an assist from 36 Serie A appearances last term.
The 24-year-old was a regular fixture of Steven Gerrard's midfield last term and has garnered interest from other clubs after registering two goals and three assists in 34 Premier League outings last season.
Luiz's contract at Villa Park will expire at the end of next season, and according to Corriere dello Sport, the Olympic Gold medallist is ready to force an exit from the Premier League club.
Milan's top target Renato Sanches is expected to sign for Paris Saint-Germain, leading Stefano Pioli to consider a move for Luiz, who has five goals and eight assists to boast from 111 games in a Villa shirt.