Manchester United remains adamant that they will not sell naming rights to Old Trafford, according to sources.

Rumors on social media sites have suggested that United's stadium could be renamed after Nike in a lucrative deal that would enable them either to pay off debt or finance the sining of new players.

Forbes reported in 2012 that a 20-year deal on the Old Trafford naming rights could be worth as much as $1 billion.

Barcelona is denying reports that the club reached a deal with tax authorities in Spain to avoid tax charges on the transfer of Neymar last offseason.

Neymar's official transfer to Barcelona was €57 million, but an additional €37.9 million payment was also made to a company controlled by his father.

Barcelona has already paid €13.6 million in taxes though club president Josep Maria Bartomeu has said he expects that money returned.

Barcelona released the following statement:

"In response to various stories published over the last few hours, FC Barcelona would like to categorically deny that they have communicated to the Public Prosecutor a commitment to reach an agreement confirming the existence of any misdemeanor in relation to the tax authorities, in order to close the case brought before the National Courts relating to the signing of Neymar."