It was claimed by former United boss Sir Alex Ferguson at the end of last season that Rooney, 27, had seen a second transfer request in three years rejected by the club he joined from Everton in 2004.
Reports have since suggested that the England international was unhappy with this declaration, and speculation has since raged over his future, with Arsenal, Chelsea and Paris Saint-Germain linked with his signature.
Rooney is expected to hold talks with new Red Devils boss David Moyes this week, and it is reported by the Times and the Guardian that the club are "relaxed" regarding the situation.
The forward has two years remaining on his current contract and it is claimed that Rooney will have to submit a formal transfer request in order to force through a departure.
Meanwhile, Barcelona defender Gerard Pique, who spent four years at Old Trafford, has voiced his backing for Rooney to be brought to the Camp Nou this summer.
He told Sport: "I know he has what's needed to be one of the three best players in the world. He'd fit well with Barcelona."
"He can adapt to many positions. He's best as the centre-forward, but we have even seen him on left or right side.
"He is very versatile, strong, fast, has great technique. I don't think he would have any problems adapting."