Taider has been linked with a possible €18million move to Inter, but George Atangana has also claimed that the Premier Leagque champions have contacted him over a move.
Atangana insists that he is yet to hear from the Nerrazzuri, but did admit interest from United.
"I've not heard from Inter," Atangana told the Corriere di Bologna.
"I have been in touch with other clubs, like Manchester United, though. I told them to directly contact Bologna.
"If a club like Manchester United is interested in one of your players then you have to give him what he deserves if you want him to stay.
"Right now, Saphir is not happy."
Taider is an Algerian international, joined Bologna in 2011 from French outfit Grenoble.