Southampton coach Ronald Koeman says all key elements of his squad will not be sold this summer.
The Red Devils failed to sign long-term target Pedro who decided to leave Barcelona to join rivals Chelsea and recent reports have claimed that Manchester United are ready to offer £20m to sign offensive midfielder Sadio Mane.
But the Dutchman has rubbished the rumours.
"Nobody is for sale, we will do everything to keep the best players here," Koeman is quoted as saying by Goal.
"There is no bid for any player. Not for [Victor] Wanyama, not for Sadio, not anyone.
"We want to continue with these players and that's the most important thing.
"This is the worst situation for smaller clubs. We have to deal with the rumors from the press and maybe [leaked] from Manchester United.
"No one talks about the best players of [Manchester] City, United or Chelsea."